64328800

素因数分解:

$2^5\times 5^2\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:632

約数の個数: 72

約数和(自身を含む): 158239872

約数和(自身を除く): 93911072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 191, 200, 382, 400, 421, 764, 800, 842, 955, 1528, 1684, 1910, 2105, 3056, 3368, 3820, 4210, 4775, 6112, 6736, 7640, 8420, 9550, 10525, 13472, 15280, 16840, 19100, 21050, 30560, 33680, 38200, 42100, 67360, 76400, 80411, 84200, 152800, 160822, 168400, 321644, 336800, 402055, 643288, 804110, 1286576, 1608220, 2010275, 2573152, 3216440, 4020550, 6432880, 8041100, 12865760, 16082200, 32164400, 64328800]

約数ペア:

[(1, 64328800), (2, 32164400), (4, 16082200), (5, 12865760), (8, 8041100), (10, 6432880), (16, 4020550), (20, 3216440), (25, 2573152), (32, 2010275), (40, 1608220), (50, 1286576), (80, 804110), (100, 643288), (160, 402055), (191, 336800), (200, 321644), (382, 168400), (400, 160822), (421, 152800), (764, 84200), (800, 80411), (842, 76400), (955, 67360), (1528, 42100), (1684, 38200), (1910, 33680), (2105, 30560), (3056, 21050), (3368, 19100), (3820, 16840), (4210, 15280), (4775, 13472), (6112, 10525), (6736, 9550), (7640, 8420)]