646077680

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{28537}}^1$

素因数の和:28833

約数の個数: 40

約数和(自身を含む): 1507491312

約数和(自身を除く): 861413632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 1132, 1415, 2264, 2830, 4528, 5660, 11320, 22640, 28537, 57074, 114148, 142685, 228296, 285370, 456592, 570740, 1141480, 2282960, 8075971, 16151942, 32303884, 40379855, 64607768, 80759710, 129215536, 161519420, 323038840, 646077680]

約数ペア:

[(1, 646077680), (2, 323038840), (4, 161519420), (5, 129215536), (8, 80759710), (10, 64607768), (16, 40379855), (20, 32303884), (40, 16151942), (80, 8075971), (283, 2282960), (566, 1141480), (1132, 570740), (1415, 456592), (2264, 285370), (2830, 228296), (4528, 142685), (5660, 114148), (11320, 57074), (22640, 28537)]