21788897100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{172517}}^1$

素因数の和:172955

約数の個数: 72

約数和(自身を含む): 63192653328

約数和(自身を除く): 41403756228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 421, 842, 1263, 1684, 2105, 2526, 4210, 5052, 6315, 8420, 10525, 12630, 21050, 25260, 31575, 42100, 63150, 126300, 172517, 345034, 517551, 690068, 862585, 1035102, 1725170, 2070204, 2587755, 3450340, 4312925, 5175510, 8625850, 10351020, 12938775, 17251700, 25877550, 51755100, 72629657, 145259314, 217888971, 290518628, 363148285, 435777942, 726296570, 871555884, 1089444855, 1452593140, 1815741425, 2178889710, 3631482850, 4357779420, 5447224275, 7262965700, 10894448550, 21788897100]

約数ペア:

[(1, 21788897100), (2, 10894448550), (3, 7262965700), (4, 5447224275), (5, 4357779420), (6, 3631482850), (10, 2178889710), (12, 1815741425), (15, 1452593140), (20, 1089444855), (25, 871555884), (30, 726296570), (50, 435777942), (60, 363148285), (75, 290518628), (100, 217888971), (150, 145259314), (300, 72629657), (421, 51755100), (842, 25877550), (1263, 17251700), (1684, 12938775), (2105, 10351020), (2526, 8625850), (4210, 5175510), (5052, 4312925), (6315, 3450340), (8420, 2587755), (10525, 2070204), (12630, 1725170), (21050, 1035102), (25260, 862585), (31575, 690068), (42100, 517551), (63150, 345034), (126300, 172517)]