31138120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{257}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 76068720

約数和(自身を除く): 44930600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 233, 257, 260, 466, 514, 520, 932, 1028, 1165, 1285, 1864, 2056, 2330, 2570, 3029, 3341, 4660, 5140, 6058, 6682, 9320, 10280, 12116, 13364, 15145, 16705, 24232, 26728, 30290, 33410, 59881, 60580, 66820, 119762, 121160, 133640, 239524, 299405, 479048, 598810, 778453, 1197620, 1556906, 2395240, 3113812, 3892265, 6227624, 7784530, 15569060, 31138120]

約数ペア:

[(1, 31138120), (2, 15569060), (4, 7784530), (5, 6227624), (8, 3892265), (10, 3113812), (13, 2395240), (20, 1556906), (26, 1197620), (40, 778453), (52, 598810), (65, 479048), (104, 299405), (130, 239524), (233, 133640), (257, 121160), (260, 119762), (466, 66820), (514, 60580), (520, 59881), (932, 33410), (1028, 30290), (1165, 26728), (1285, 24232), (1864, 16705), (2056, 15145), (2330, 13364), (2570, 12116), (3029, 10280), (3341, 9320), (4660, 6682), (5140, 6058)]