21966160

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 54027792

約数和(自身を除く): 32061632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 41, 74, 80, 82, 148, 164, 181, 185, 205, 296, 328, 362, 370, 410, 592, 656, 724, 740, 820, 905, 1448, 1480, 1517, 1640, 1810, 2896, 2960, 3034, 3280, 3620, 6068, 6697, 7240, 7421, 7585, 12136, 13394, 14480, 14842, 15170, 24272, 26788, 29684, 30340, 33485, 37105, 53576, 59368, 60680, 66970, 74210, 107152, 118736, 121360, 133940, 148420, 267880, 274577, 296840, 535760, 549154, 593680, 1098308, 1372885, 2196616, 2745770, 4393232, 5491540, 10983080, 21966160]

約数ペア:

[(1, 21966160), (2, 10983080), (4, 5491540), (5, 4393232), (8, 2745770), (10, 2196616), (16, 1372885), (20, 1098308), (37, 593680), (40, 549154), (41, 535760), (74, 296840), (80, 274577), (82, 267880), (148, 148420), (164, 133940), (181, 121360), (185, 118736), (205, 107152), (296, 74210), (328, 66970), (362, 60680), (370, 59368), (410, 53576), (592, 37105), (656, 33485), (724, 30340), (740, 29684), (820, 26788), (905, 24272), (1448, 15170), (1480, 14842), (1517, 14480), (1640, 13394), (1810, 12136), (2896, 7585), (2960, 7421), (3034, 7240), (3280, 6697), (3620, 6068)]