987959180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{27337}}^1$

素因数の和:27498

約数の個数: 48

約数和(自身を含む): 2250464160

約数和(自身を除く): 1262504980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1390, 1807, 2780, 3614, 7228, 9035, 18070, 27337, 36140, 54674, 109348, 136685, 273370, 355381, 546740, 710762, 1421524, 1776905, 3553810, 3799843, 7107620, 7599686, 15199372, 18999215, 37998430, 49397959, 75996860, 98795918, 197591836, 246989795, 493979590, 987959180]

約数ペア:

[(1, 987959180), (2, 493979590), (4, 246989795), (5, 197591836), (10, 98795918), (13, 75996860), (20, 49397959), (26, 37998430), (52, 18999215), (65, 15199372), (130, 7599686), (139, 7107620), (260, 3799843), (278, 3553810), (556, 1776905), (695, 1421524), (1390, 710762), (1807, 546740), (2780, 355381), (3614, 273370), (7228, 136685), (9035, 109348), (18070, 54674), (27337, 36140)]