2577640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4957}}^1$

素因数の和:4981

約数の個数: 32

約数和(自身を含む): 6247080

約数和(自身を除く): 3669440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4957, 9914, 19828, 24785, 39656, 49570, 64441, 99140, 128882, 198280, 257764, 322205, 515528, 644410, 1288820, 2577640]

約数ペア:

[(1, 2577640), (2, 1288820), (4, 644410), (5, 515528), (8, 322205), (10, 257764), (13, 198280), (20, 128882), (26, 99140), (40, 64441), (52, 49570), (65, 39656), (104, 24785), (130, 19828), (260, 9914), (520, 4957)]