428209020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:796

約数の個数: 144

約数和(自身を含む): 1344601440

約数和(自身を除く): 916392420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 61, 90, 118, 122, 177, 180, 183, 236, 244, 295, 305, 354, 366, 531, 549, 590, 610, 661, 708, 732, 885, 915, 1062, 1098, 1180, 1220, 1322, 1770, 1830, 1983, 2124, 2196, 2644, 2655, 2745, 3305, 3540, 3599, 3660, 3966, 5310, 5490, 5949, 6610, 7198, 7932, 9915, 10620, 10797, 10980, 11898, 13220, 14396, 17995, 19830, 21594, 23796, 29745, 32391, 35990, 38999, 39660, 40321, 43188, 53985, 59490, 64782, 71980, 77998, 80642, 107970, 116997, 118980, 120963, 129564, 155996, 161284, 161955, 194995, 201605, 215940, 233994, 241926, 323910, 350991, 362889, 389990, 403210, 467988, 483852, 584985, 604815, 647820, 701982, 725778, 779980, 806420, 1169970, 1209630, 1403964, 1451556, 1754955, 1814445, 2339940, 2378939, 2419260, 3509910, 3628890, 4757878, 7019820, 7136817, 7257780, 9515756, 11894695, 14273634, 21410451, 23789390, 28547268, 35684085, 42820902, 47578780, 71368170, 85641804, 107052255, 142736340, 214104510, 428209020]

約数ペア:

[(1, 428209020), (2, 214104510), (3, 142736340), (4, 107052255), (5, 85641804), (6, 71368170), (9, 47578780), (10, 42820902), (12, 35684085), (15, 28547268), (18, 23789390), (20, 21410451), (30, 14273634), (36, 11894695), (45, 9515756), (59, 7257780), (60, 7136817), (61, 7019820), (90, 4757878), (118, 3628890), (122, 3509910), (177, 2419260), (180, 2378939), (183, 2339940), (236, 1814445), (244, 1754955), (295, 1451556), (305, 1403964), (354, 1209630), (366, 1169970), (531, 806420), (549, 779980), (590, 725778), (610, 701982), (661, 647820), (708, 604815), (732, 584985), (885, 483852), (915, 467988), (1062, 403210), (1098, 389990), (1180, 362889), (1220, 350991), (1322, 323910), (1770, 241926), (1830, 233994), (1983, 215940), (2124, 201605), (2196, 194995), (2644, 161955), (2655, 161284), (2745, 155996), (3305, 129564), (3540, 120963), (3599, 118980), (3660, 116997), (3966, 107970), (5310, 80642), (5490, 77998), (5949, 71980), (6610, 64782), (7198, 59490), (7932, 53985), (9915, 43188), (10620, 40321), (10797, 39660), (10980, 38999), (11898, 35990), (13220, 32391), (14396, 29745), (17995, 23796), (19830, 21594)]