421128540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:414

約数の個数: 288

約数和(自身を含む): 1572480000

約数和(自身を除く): 1151351460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 343, 359, 380, 399, 420, 441, 490, 532, 570, 588, 630, 665, 684, 686, 718, 735, 798, 855, 882, 931, 980, 1029, 1077, 1140, 1197, 1260, 1330, 1372, 1436, 1470, 1596, 1710, 1715, 1764, 1795, 1862, 1995, 2058, 2154, 2205, 2394, 2513, 2660, 2793, 2940, 3087, 3231, 3420, 3430, 3590, 3724, 3990, 4116, 4308, 4410, 4655, 4788, 5026, 5145, 5385, 5586, 5985, 6174, 6462, 6517, 6821, 6860, 7180, 7539, 7980, 8379, 8820, 9310, 10052, 10290, 10770, 11172, 11970, 12348, 12565, 12924, 13034, 13642, 13965, 15078, 15435, 16155, 16758, 17591, 18620, 19551, 20463, 20580, 21540, 22617, 23940, 25130, 26068, 27284, 27930, 30156, 30870, 32310, 32585, 33516, 34105, 35182, 37695, 39102, 40926, 41895, 45234, 47747, 50260, 52773, 55860, 58653, 61389, 61740, 64620, 65170, 68210, 70364, 75390, 78204, 81852, 83790, 87955, 90468, 95494, 97755, 102315, 105546, 113085, 117306, 122778, 123137, 130340, 136420, 143241, 150780, 158319, 167580, 175910, 190988, 195510, 204630, 211092, 226170, 234612, 238735, 245556, 246274, 263865, 286482, 293265, 306945, 316638, 334229, 351820, 369411, 391020, 409260, 429723, 452340, 477470, 492548, 527730, 572964, 586530, 613890, 615685, 633276, 668458, 716205, 738822, 791595, 859446, 954940, 1002687, 1055460, 1108233, 1173060, 1227780, 1231370, 1336916, 1432410, 1477644, 1583190, 1671145, 1718892, 1847055, 2005374, 2148615, 2216466, 2339603, 2462740, 2864820, 3008061, 3166380, 3342290, 3694110, 4010748, 4297230, 4432932, 4679206, 5013435, 5541165, 6016122, 6684580, 7018809, 7388220, 8594460, 9358412, 10026870, 11082330, 11698015, 12032244, 14037618, 15040305, 20053740, 21056427, 22164660, 23396030, 28075236, 30080610, 35094045, 42112854, 46792060, 60161220, 70188090, 84225708, 105282135, 140376180, 210564270, 421128540]

約数ペア:

[(1, 421128540), (2, 210564270), (3, 140376180), (4, 105282135), (5, 84225708), (6, 70188090), (7, 60161220), (9, 46792060), (10, 42112854), (12, 35094045), (14, 30080610), (15, 28075236), (18, 23396030), (19, 22164660), (20, 21056427), (21, 20053740), (28, 15040305), (30, 14037618), (35, 12032244), (36, 11698015), (38, 11082330), (42, 10026870), (45, 9358412), (49, 8594460), (57, 7388220), (60, 7018809), (63, 6684580), (70, 6016122), (76, 5541165), (84, 5013435), (90, 4679206), (95, 4432932), (98, 4297230), (105, 4010748), (114, 3694110), (126, 3342290), (133, 3166380), (140, 3008061), (147, 2864820), (171, 2462740), (180, 2339603), (190, 2216466), (196, 2148615), (210, 2005374), (228, 1847055), (245, 1718892), (252, 1671145), (266, 1583190), (285, 1477644), (294, 1432410), (315, 1336916), (342, 1231370), (343, 1227780), (359, 1173060), (380, 1108233), (399, 1055460), (420, 1002687), (441, 954940), (490, 859446), (532, 791595), (570, 738822), (588, 716205), (630, 668458), (665, 633276), (684, 615685), (686, 613890), (718, 586530), (735, 572964), (798, 527730), (855, 492548), (882, 477470), (931, 452340), (980, 429723), (1029, 409260), (1077, 391020), (1140, 369411), (1197, 351820), (1260, 334229), (1330, 316638), (1372, 306945), (1436, 293265), (1470, 286482), (1596, 263865), (1710, 246274), (1715, 245556), (1764, 238735), (1795, 234612), (1862, 226170), (1995, 211092), (2058, 204630), (2154, 195510), (2205, 190988), (2394, 175910), (2513, 167580), (2660, 158319), (2793, 150780), (2940, 143241), (3087, 136420), (3231, 130340), (3420, 123137), (3430, 122778), (3590, 117306), (3724, 113085), (3990, 105546), (4116, 102315), (4308, 97755), (4410, 95494), (4655, 90468), (4788, 87955), (5026, 83790), (5145, 81852), (5385, 78204), (5586, 75390), (5985, 70364), (6174, 68210), (6462, 65170), (6517, 64620), (6821, 61740), (6860, 61389), (7180, 58653), (7539, 55860), (7980, 52773), (8379, 50260), (8820, 47747), (9310, 45234), (10052, 41895), (10290, 40926), (10770, 39102), (11172, 37695), (11970, 35182), (12348, 34105), (12565, 33516), (12924, 32585), (13034, 32310), (13642, 30870), (13965, 30156), (15078, 27930), (15435, 27284), (16155, 26068), (16758, 25130), (17591, 23940), (18620, 22617), (19551, 21540), (20463, 20580)]