661557780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:357

約数の個数: 288

約数和(自身を含む): 2309833344

約数和(自身を除く): 1648275564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 37, 39, 45, 52, 54, 60, 65, 74, 78, 81, 90, 108, 111, 117, 130, 135, 148, 156, 162, 180, 185, 195, 222, 234, 243, 260, 270, 283, 324, 333, 351, 370, 390, 405, 444, 468, 481, 486, 540, 555, 566, 585, 666, 702, 740, 780, 810, 849, 962, 972, 999, 1053, 1110, 1132, 1170, 1215, 1332, 1404, 1415, 1443, 1620, 1665, 1698, 1755, 1924, 1998, 2106, 2220, 2340, 2405, 2430, 2547, 2830, 2886, 2997, 3159, 3330, 3396, 3510, 3679, 3996, 4212, 4245, 4329, 4810, 4860, 4995, 5094, 5265, 5660, 5772, 5994, 6318, 6660, 7020, 7215, 7358, 7641, 8490, 8658, 8991, 9620, 9990, 10188, 10471, 10530, 11037, 11988, 12636, 12735, 12987, 14430, 14716, 14985, 15282, 15795, 16980, 17316, 17982, 18395, 19980, 20942, 21060, 21645, 22074, 22923, 25470, 25974, 28860, 29970, 30564, 31413, 31590, 33111, 35964, 36790, 38205, 38961, 41884, 43290, 44148, 44955, 45846, 50940, 51948, 52355, 55185, 59940, 62826, 63180, 64935, 66222, 68769, 73580, 76410, 77922, 86580, 89910, 91692, 94239, 99333, 104710, 110370, 114615, 116883, 125652, 129870, 132444, 136123, 137538, 152820, 155844, 157065, 165555, 179820, 188478, 194805, 198666, 209420, 220740, 229230, 233766, 259740, 272246, 275076, 282717, 297999, 314130, 331110, 343845, 376956, 389610, 397332, 408369, 458460, 467532, 471195, 496665, 544492, 565434, 584415, 595998, 628260, 662220, 680615, 687690, 779220, 816738, 848151, 893997, 942390, 993330, 1130868, 1168830, 1191996, 1225107, 1361230, 1375380, 1413585, 1489995, 1633476, 1696302, 1787994, 1884780, 1986660, 2041845, 2337660, 2450214, 2544453, 2722460, 2827170, 2979990, 3392604, 3575988, 3675321, 4083690, 4240755, 4469985, 4900428, 5088906, 5654340, 5959980, 6125535, 7350642, 8167380, 8481510, 8939970, 10177812, 11025963, 12251070, 12722265, 14701284, 16963020, 17879940, 18376605, 22051926, 24502140, 25444530, 33077889, 36753210, 44103852, 50889060, 55129815, 66155778, 73506420, 110259630, 132311556, 165389445, 220519260, 330778890, 661557780]

約数ペア:

[(1, 661557780), (2, 330778890), (3, 220519260), (4, 165389445), (5, 132311556), (6, 110259630), (9, 73506420), (10, 66155778), (12, 55129815), (13, 50889060), (15, 44103852), (18, 36753210), (20, 33077889), (26, 25444530), (27, 24502140), (30, 22051926), (36, 18376605), (37, 17879940), (39, 16963020), (45, 14701284), (52, 12722265), (54, 12251070), (60, 11025963), (65, 10177812), (74, 8939970), (78, 8481510), (81, 8167380), (90, 7350642), (108, 6125535), (111, 5959980), (117, 5654340), (130, 5088906), (135, 4900428), (148, 4469985), (156, 4240755), (162, 4083690), (180, 3675321), (185, 3575988), (195, 3392604), (222, 2979990), (234, 2827170), (243, 2722460), (260, 2544453), (270, 2450214), (283, 2337660), (324, 2041845), (333, 1986660), (351, 1884780), (370, 1787994), (390, 1696302), (405, 1633476), (444, 1489995), (468, 1413585), (481, 1375380), (486, 1361230), (540, 1225107), (555, 1191996), (566, 1168830), (585, 1130868), (666, 993330), (702, 942390), (740, 893997), (780, 848151), (810, 816738), (849, 779220), (962, 687690), (972, 680615), (999, 662220), (1053, 628260), (1110, 595998), (1132, 584415), (1170, 565434), (1215, 544492), (1332, 496665), (1404, 471195), (1415, 467532), (1443, 458460), (1620, 408369), (1665, 397332), (1698, 389610), (1755, 376956), (1924, 343845), (1998, 331110), (2106, 314130), (2220, 297999), (2340, 282717), (2405, 275076), (2430, 272246), (2547, 259740), (2830, 233766), (2886, 229230), (2997, 220740), (3159, 209420), (3330, 198666), (3396, 194805), (3510, 188478), (3679, 179820), (3996, 165555), (4212, 157065), (4245, 155844), (4329, 152820), (4810, 137538), (4860, 136123), (4995, 132444), (5094, 129870), (5265, 125652), (5660, 116883), (5772, 114615), (5994, 110370), (6318, 104710), (6660, 99333), (7020, 94239), (7215, 91692), (7358, 89910), (7641, 86580), (8490, 77922), (8658, 76410), (8991, 73580), (9620, 68769), (9990, 66222), (10188, 64935), (10471, 63180), (10530, 62826), (11037, 59940), (11988, 55185), (12636, 52355), (12735, 51948), (12987, 50940), (14430, 45846), (14716, 44955), (14985, 44148), (15282, 43290), (15795, 41884), (16980, 38961), (17316, 38205), (17982, 36790), (18395, 35964), (19980, 33111), (20942, 31590), (21060, 31413), (21645, 30564), (22074, 29970), (22923, 28860), (25470, 25974)]