31778480

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2437}}^1$

素因数の和:2613

約数の個数: 40

約数和(自身を含む): 74368752

約数和(自身を除く): 42590272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2437, 2608, 3260, 4874, 6520, 9748, 12185, 13040, 19496, 24370, 38992, 48740, 97480, 194960, 397231, 794462, 1588924, 1986155, 3177848, 3972310, 6355696, 7944620, 15889240, 31778480]

約数ペア:

[(1, 31778480), (2, 15889240), (4, 7944620), (5, 6355696), (8, 3972310), (10, 3177848), (16, 1986155), (20, 1588924), (40, 794462), (80, 397231), (163, 194960), (326, 97480), (652, 48740), (815, 38992), (1304, 24370), (1630, 19496), (2437, 13040), (2608, 12185), (3260, 9748), (4874, 6520)]