18949060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2351}}^1$

素因数の和:2404

約数の個数: 48

約数和(自身を含む): 44255232

約数和(自身を除く): 25306172

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2351, 4030, 4702, 8060, 9404, 11755, 23510, 30563, 47020, 61126, 72881, 122252, 145762, 152815, 291524, 305630, 364405, 611260, 728810, 947453, 1457620, 1894906, 3789812, 4737265, 9474530, 18949060]

約数ペア:

[(1, 18949060), (2, 9474530), (4, 4737265), (5, 3789812), (10, 1894906), (13, 1457620), (20, 947453), (26, 728810), (31, 611260), (52, 364405), (62, 305630), (65, 291524), (124, 152815), (130, 145762), (155, 122252), (260, 72881), (310, 61126), (403, 47020), (620, 30563), (806, 23510), (1612, 11755), (2015, 9404), (2351, 8060), (4030, 4702)]