620974580

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{239}}^1\times {\mathrm{797}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 1319189760

約数和(自身を除く): 698215180

約数列:

[1, 2, 4, 5, 10, 20, 163, 239, 326, 478, 652, 797, 815, 956, 1195, 1594, 1630, 2390, 3188, 3260, 3985, 4780, 7970, 15940, 38957, 77914, 129911, 155828, 190483, 194785, 259822, 380966, 389570, 519644, 649555, 761932, 779140, 952415, 1299110, 1904830, 2598220, 3809660, 31048729, 62097458, 124194916, 155243645, 310487290, 620974580]

約数ペア:

[(1, 620974580), (2, 310487290), (4, 155243645), (5, 124194916), (10, 62097458), (20, 31048729), (163, 3809660), (239, 2598220), (326, 1904830), (478, 1299110), (652, 952415), (797, 779140), (815, 761932), (956, 649555), (1195, 519644), (1594, 389570), (1630, 380966), (2390, 259822), (3188, 194785), (3260, 190483), (3985, 155828), (4780, 129911), (7970, 77914), (15940, 38957)]