18872620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2503}}^1$

素因数の和:2554

約数の個数: 48

約数和(自身を含む): 44170560

約数和(自身を除く): 25297940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2503, 3770, 5006, 7540, 10012, 12515, 25030, 32539, 50060, 65078, 72587, 130156, 145174, 162695, 290348, 325390, 362935, 650780, 725870, 943631, 1451740, 1887262, 3774524, 4718155, 9436310, 18872620]

約数ペア:

[(1, 18872620), (2, 9436310), (4, 4718155), (5, 3774524), (10, 1887262), (13, 1451740), (20, 943631), (26, 725870), (29, 650780), (52, 362935), (58, 325390), (65, 290348), (116, 162695), (130, 145174), (145, 130156), (260, 72587), (290, 65078), (377, 50060), (580, 32539), (754, 25030), (1508, 12515), (1885, 10012), (2503, 7540), (3770, 5006)]