27795280

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2213}}^1$

素因数の和:2383

約数の個数: 40

約数和(自身を含む): 65065032

約数和(自身を除く): 37269752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2213, 2512, 3140, 4426, 6280, 8852, 11065, 12560, 17704, 22130, 35408, 44260, 88520, 177040, 347441, 694882, 1389764, 1737205, 2779528, 3474410, 5559056, 6948820, 13897640, 27795280]

約数ペア:

[(1, 27795280), (2, 13897640), (4, 6948820), (5, 5559056), (8, 3474410), (10, 2779528), (16, 1737205), (20, 1389764), (40, 694882), (80, 347441), (157, 177040), (314, 88520), (628, 44260), (785, 35408), (1256, 22130), (1570, 17704), (2213, 12560), (2512, 11065), (3140, 8852), (4426, 6280)]