20582510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 42294960

約数和(自身を除く): 21712450

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 641, 845, 1235, 1282, 1690, 2470, 3205, 3211, 6410, 6422, 8333, 12179, 16055, 16666, 24358, 32110, 41665, 60895, 83330, 108329, 121790, 158327, 216658, 316654, 541645, 791635, 1083290, 1583270, 2058251, 4116502, 10291255, 20582510]

約数ペア:

[(1, 20582510), (2, 10291255), (5, 4116502), (10, 2058251), (13, 1583270), (19, 1083290), (26, 791635), (38, 541645), (65, 316654), (95, 216658), (130, 158327), (169, 121790), (190, 108329), (247, 83330), (338, 60895), (494, 41665), (641, 32110), (845, 24358), (1235, 16666), (1282, 16055), (1690, 12179), (2470, 8333), (3205, 6422), (3211, 6410)]