253924995

素因数分解:

$3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 411148800

約数和(自身を除く): 157223805

約数列:

[1, 3, 5, 15, 199, 257, 331, 597, 771, 993, 995, 1285, 1655, 2985, 3855, 4965, 51143, 65869, 85067, 153429, 197607, 255201, 255715, 329345, 425335, 767145, 988035, 1276005, 16928333, 50784999, 84641665, 253924995]

約数ペア:

[(1, 253924995), (3, 84641665), (5, 50784999), (15, 16928333), (199, 1276005), (257, 988035), (331, 767145), (597, 425335), (771, 329345), (993, 255715), (995, 255201), (1285, 197607), (1655, 153429), (2985, 85067), (3855, 65869), (4965, 51143)]