638819996

素因数分解:

$2^2\times {\mathrm{151}}^1\times {\mathrm{719}}^1\times {\mathrm{1471}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 1127669760

約数和(自身を除く): 488849764

約数列:

[1, 2, 4, 151, 302, 604, 719, 1438, 1471, 2876, 2942, 5884, 108569, 217138, 222121, 434276, 444242, 888484, 1057649, 2115298, 4230596, 159704999, 319409998, 638819996]

約数ペア:

[(1, 638819996), (2, 319409998), (4, 159704999), (151, 4230596), (302, 2115298), (604, 1057649), (719, 888484), (1438, 444242), (1471, 434276), (2876, 222121), (2942, 217138), (5884, 108569)]