1290701800

素因数分解:

$2^3\times 5^2\times {\mathrm{421}}^1\times {\mathrm{15329}}^1$

素因数の和:15766

約数の個数: 48

約数和(自身を含む): 3008205900

約数和(自身を除く): 1717504100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 421, 842, 1684, 2105, 3368, 4210, 8420, 10525, 15329, 16840, 21050, 30658, 42100, 61316, 76645, 84200, 122632, 153290, 306580, 383225, 613160, 766450, 1532900, 3065800, 6453509, 12907018, 25814036, 32267545, 51628072, 64535090, 129070180, 161337725, 258140360, 322675450, 645350900, 1290701800]

約数ペア:

[(1, 1290701800), (2, 645350900), (4, 322675450), (5, 258140360), (8, 161337725), (10, 129070180), (20, 64535090), (25, 51628072), (40, 32267545), (50, 25814036), (100, 12907018), (200, 6453509), (421, 3065800), (842, 1532900), (1684, 766450), (2105, 613160), (3368, 383225), (4210, 306580), (8420, 153290), (10525, 122632), (15329, 84200), (16840, 76645), (21050, 61316), (30658, 42100)]