53915920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:560

約数の個数: 80

約数和(自身を含む): 133920000

約数和(自身を除く): 80004080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 79, 80, 95, 152, 158, 190, 304, 316, 380, 395, 449, 632, 760, 790, 898, 1264, 1501, 1520, 1580, 1796, 2245, 3002, 3160, 3592, 4490, 6004, 6320, 7184, 7505, 8531, 8980, 12008, 15010, 17062, 17960, 24016, 30020, 34124, 35471, 35920, 42655, 60040, 68248, 70942, 85310, 120080, 136496, 141884, 170620, 177355, 283768, 341240, 354710, 567536, 673949, 682480, 709420, 1347898, 1418840, 2695796, 2837680, 3369745, 5391592, 6739490, 10783184, 13478980, 26957960, 53915920]

約数ペア:

[(1, 53915920), (2, 26957960), (4, 13478980), (5, 10783184), (8, 6739490), (10, 5391592), (16, 3369745), (19, 2837680), (20, 2695796), (38, 1418840), (40, 1347898), (76, 709420), (79, 682480), (80, 673949), (95, 567536), (152, 354710), (158, 341240), (190, 283768), (304, 177355), (316, 170620), (380, 141884), (395, 136496), (449, 120080), (632, 85310), (760, 70942), (790, 68248), (898, 60040), (1264, 42655), (1501, 35920), (1520, 35471), (1580, 34124), (1796, 30020), (2245, 24016), (3002, 17960), (3160, 17062), (3592, 15010), (4490, 12008), (6004, 8980), (6320, 8531), (7184, 7505)]