21918780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 288

約数和(自身を含む): 82555200

約数和(自身を除く): 60636420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 19, 20, 26, 29, 30, 34, 36, 38, 39, 45, 51, 52, 57, 58, 60, 65, 68, 76, 78, 85, 87, 90, 95, 102, 114, 116, 117, 130, 145, 153, 156, 170, 171, 174, 180, 190, 195, 204, 221, 228, 234, 247, 255, 260, 261, 285, 290, 306, 323, 340, 342, 348, 377, 380, 390, 435, 442, 468, 493, 494, 510, 522, 551, 570, 580, 585, 612, 646, 663, 684, 741, 754, 765, 780, 855, 870, 884, 969, 986, 988, 1020, 1044, 1102, 1105, 1131, 1140, 1170, 1235, 1292, 1305, 1326, 1479, 1482, 1508, 1530, 1615, 1653, 1710, 1740, 1885, 1938, 1972, 1989, 2204, 2210, 2223, 2262, 2340, 2465, 2470, 2610, 2652, 2755, 2907, 2958, 2964, 3060, 3230, 3306, 3315, 3393, 3420, 3705, 3770, 3876, 3978, 4199, 4420, 4437, 4446, 4524, 4845, 4930, 4940, 4959, 5220, 5510, 5655, 5814, 5916, 6409, 6460, 6612, 6630, 6786, 7163, 7395, 7410, 7540, 7956, 8265, 8398, 8874, 8892, 9367, 9690, 9860, 9918, 9945, 11020, 11115, 11310, 11628, 12597, 12818, 13260, 13572, 14326, 14535, 14790, 14820, 16530, 16796, 16965, 17748, 18734, 19227, 19380, 19836, 19890, 20995, 21489, 22185, 22230, 22620, 24795, 25194, 25636, 28101, 28652, 29070, 29580, 32045, 33060, 33930, 35815, 37468, 37791, 38454, 39780, 41990, 42978, 44370, 44460, 46835, 49590, 50388, 56202, 57681, 58140, 62985, 64090, 64467, 67860, 71630, 75582, 76908, 83980, 84303, 85956, 88740, 93670, 96135, 99180, 107445, 112404, 115362, 121771, 125970, 128180, 128934, 140505, 143260, 151164, 168606, 187340, 188955, 192270, 214890, 230724, 243542, 251940, 257868, 281010, 288405, 322335, 337212, 365313, 377910, 384540, 421515, 429780, 487084, 562020, 576810, 608855, 644670, 730626, 755820, 843030, 1095939, 1153620, 1217710, 1289340, 1461252, 1686060, 1826565, 2191878, 2435420, 3653130, 4383756, 5479695, 7306260, 10959390, 21918780]

約数ペア:

[(1, 21918780), (2, 10959390), (3, 7306260), (4, 5479695), (5, 4383756), (6, 3653130), (9, 2435420), (10, 2191878), (12, 1826565), (13, 1686060), (15, 1461252), (17, 1289340), (18, 1217710), (19, 1153620), (20, 1095939), (26, 843030), (29, 755820), (30, 730626), (34, 644670), (36, 608855), (38, 576810), (39, 562020), (45, 487084), (51, 429780), (52, 421515), (57, 384540), (58, 377910), (60, 365313), (65, 337212), (68, 322335), (76, 288405), (78, 281010), (85, 257868), (87, 251940), (90, 243542), (95, 230724), (102, 214890), (114, 192270), (116, 188955), (117, 187340), (130, 168606), (145, 151164), (153, 143260), (156, 140505), (170, 128934), (171, 128180), (174, 125970), (180, 121771), (190, 115362), (195, 112404), (204, 107445), (221, 99180), (228, 96135), (234, 93670), (247, 88740), (255, 85956), (260, 84303), (261, 83980), (285, 76908), (290, 75582), (306, 71630), (323, 67860), (340, 64467), (342, 64090), (348, 62985), (377, 58140), (380, 57681), (390, 56202), (435, 50388), (442, 49590), (468, 46835), (493, 44460), (494, 44370), (510, 42978), (522, 41990), (551, 39780), (570, 38454), (580, 37791), (585, 37468), (612, 35815), (646, 33930), (663, 33060), (684, 32045), (741, 29580), (754, 29070), (765, 28652), (780, 28101), (855, 25636), (870, 25194), (884, 24795), (969, 22620), (986, 22230), (988, 22185), (1020, 21489), (1044, 20995), (1102, 19890), (1105, 19836), (1131, 19380), (1140, 19227), (1170, 18734), (1235, 17748), (1292, 16965), (1305, 16796), (1326, 16530), (1479, 14820), (1482, 14790), (1508, 14535), (1530, 14326), (1615, 13572), (1653, 13260), (1710, 12818), (1740, 12597), (1885, 11628), (1938, 11310), (1972, 11115), (1989, 11020), (2204, 9945), (2210, 9918), (2223, 9860), (2262, 9690), (2340, 9367), (2465, 8892), (2470, 8874), (2610, 8398), (2652, 8265), (2755, 7956), (2907, 7540), (2958, 7410), (2964, 7395), (3060, 7163), (3230, 6786), (3306, 6630), (3315, 6612), (3393, 6460), (3420, 6409), (3705, 5916), (3770, 5814), (3876, 5655), (3978, 5510), (4199, 5220), (4420, 4959), (4437, 4940), (4446, 4930), (4524, 4845)]