87533780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{457}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 188435856

約数和(自身を除く): 100902076

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 157, 244, 305, 314, 457, 610, 628, 785, 914, 1220, 1570, 1828, 2285, 3140, 4570, 9140, 9577, 19154, 27877, 38308, 47885, 55754, 71749, 95770, 111508, 139385, 143498, 191540, 278770, 286996, 358745, 557540, 717490, 1434980, 4376689, 8753378, 17506756, 21883445, 43766890, 87533780]

約数ペア:

[(1, 87533780), (2, 43766890), (4, 21883445), (5, 17506756), (10, 8753378), (20, 4376689), (61, 1434980), (122, 717490), (157, 557540), (244, 358745), (305, 286996), (314, 278770), (457, 191540), (610, 143498), (628, 139385), (785, 111508), (914, 95770), (1220, 71749), (1570, 55754), (1828, 47885), (2285, 38308), (3140, 27877), (4570, 19154), (9140, 9577)]