15998620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{601}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 37015776

約数和(自身を除く): 21017156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 601, 605, 1202, 1210, 1331, 2404, 2420, 2662, 3005, 5324, 6010, 6611, 6655, 12020, 13222, 13310, 26444, 26620, 33055, 66110, 72721, 132220, 145442, 290884, 363605, 727210, 799931, 1454420, 1599862, 3199724, 3999655, 7999310, 15998620]

約数ペア:

[(1, 15998620), (2, 7999310), (4, 3999655), (5, 3199724), (10, 1599862), (11, 1454420), (20, 799931), (22, 727210), (44, 363605), (55, 290884), (110, 145442), (121, 132220), (220, 72721), (242, 66110), (484, 33055), (601, 26620), (605, 26444), (1202, 13310), (1210, 13222), (1331, 12020), (2404, 6655), (2420, 6611), (2662, 6010), (3005, 5324)]