39855640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{379}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 98496000

約数和(自身を除く): 58640360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 239, 379, 440, 478, 758, 956, 1195, 1516, 1895, 1912, 2390, 2629, 3032, 3790, 4169, 4780, 5258, 7580, 8338, 9560, 10516, 13145, 15160, 16676, 20845, 21032, 26290, 33352, 41690, 52580, 83380, 90581, 105160, 166760, 181162, 362324, 452905, 724648, 905810, 996391, 1811620, 1992782, 3623240, 3985564, 4981955, 7971128, 9963910, 19927820, 39855640]

約数ペア:

[(1, 39855640), (2, 19927820), (4, 9963910), (5, 7971128), (8, 4981955), (10, 3985564), (11, 3623240), (20, 1992782), (22, 1811620), (40, 996391), (44, 905810), (55, 724648), (88, 452905), (110, 362324), (220, 181162), (239, 166760), (379, 105160), (440, 90581), (478, 83380), (758, 52580), (956, 41690), (1195, 33352), (1516, 26290), (1895, 21032), (1912, 20845), (2390, 16676), (2629, 15160), (3032, 13145), (3790, 10516), (4169, 9560), (4780, 8338), (5258, 7580)]