1646320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1609

約数の個数: 40

約数和(自身を含む): 4124736

約数和(自身を除く): 2478416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1583, 3166, 6332, 7915, 12664, 15830, 20579, 25328, 31660, 41158, 63320, 82316, 102895, 126640, 164632, 205790, 329264, 411580, 823160, 1646320]

約数ペア:

[(1, 1646320), (2, 823160), (4, 411580), (5, 329264), (8, 205790), (10, 164632), (13, 126640), (16, 102895), (20, 82316), (26, 63320), (40, 41158), (52, 31660), (65, 25328), (80, 20579), (104, 15830), (130, 12664), (208, 7915), (260, 6332), (520, 3166), (1040, 1583)]