21550500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4789}}^1$

素因数の和:4814

約数の個数: 72

約数和(自身を含む): 67998840

約数和(自身を除く): 46448340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4500, 4789, 9578, 14367, 19156, 23945, 28734, 43101, 47890, 57468, 71835, 86202, 95780, 119725, 143670, 172404, 215505, 239450, 287340, 359175, 431010, 478900, 598625, 718350, 862020, 1077525, 1197250, 1436700, 1795875, 2155050, 2394500, 3591750, 4310100, 5387625, 7183500, 10775250, 21550500]

約数ペア:

[(1, 21550500), (2, 10775250), (3, 7183500), (4, 5387625), (5, 4310100), (6, 3591750), (9, 2394500), (10, 2155050), (12, 1795875), (15, 1436700), (18, 1197250), (20, 1077525), (25, 862020), (30, 718350), (36, 598625), (45, 478900), (50, 431010), (60, 359175), (75, 287340), (90, 239450), (100, 215505), (125, 172404), (150, 143670), (180, 119725), (225, 95780), (250, 86202), (300, 71835), (375, 57468), (450, 47890), (500, 43101), (750, 28734), (900, 23945), (1125, 19156), (1500, 14367), (2250, 9578), (4500, 4789)]