2515640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1103

約数の個数: 32

約数和(自身を含む): 5758560

約数和(自身を除く): 3242920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1031, 1220, 2062, 2440, 4124, 5155, 8248, 10310, 20620, 41240, 62891, 125782, 251564, 314455, 503128, 628910, 1257820, 2515640]

約数ペア:

[(1, 2515640), (2, 1257820), (4, 628910), (5, 503128), (8, 314455), (10, 251564), (20, 125782), (40, 62891), (61, 41240), (122, 20620), (244, 10310), (305, 8248), (488, 5155), (610, 4124), (1031, 2440), (1220, 2062)]