18768620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1951}}^1$

素因数の和:2010

約数の個数: 48

約数和(自身を含む): 43615488

約数和(自身を除く): 24846868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 1951, 2405, 3902, 4810, 7804, 9620, 9755, 19510, 25363, 39020, 50726, 72187, 101452, 126815, 144374, 253630, 288748, 360935, 507260, 721870, 938431, 1443740, 1876862, 3753724, 4692155, 9384310, 18768620]

約数ペア:

[(1, 18768620), (2, 9384310), (4, 4692155), (5, 3753724), (10, 1876862), (13, 1443740), (20, 938431), (26, 721870), (37, 507260), (52, 360935), (65, 288748), (74, 253630), (130, 144374), (148, 126815), (185, 101452), (260, 72187), (370, 50726), (481, 39020), (740, 25363), (962, 19510), (1924, 9755), (1951, 9620), (2405, 7804), (3902, 4810)]