2561240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5821}}^1$

素因数の和:5843

約数の個数: 32

約数和(自身を含む): 6287760

約数和(自身を除く): 3726520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 5821, 11642, 23284, 29105, 46568, 58210, 64031, 116420, 128062, 232840, 256124, 320155, 512248, 640310, 1280620, 2561240]

約数ペア:

[(1, 2561240), (2, 1280620), (4, 640310), (5, 512248), (8, 320155), (10, 256124), (11, 232840), (20, 128062), (22, 116420), (40, 64031), (44, 58210), (55, 46568), (88, 29105), (110, 23284), (220, 11642), (440, 5821)]