920336740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{1619}}^1$

素因数の和:2332

約数の個数: 48

約数和(自身を含む): 1981869120

約数和(自身を除く): 1061532380

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 661, 860, 1322, 1619, 2644, 3238, 3305, 6476, 6610, 8095, 13220, 16190, 28423, 32380, 56846, 69617, 113692, 139234, 142115, 278468, 284230, 348085, 568460, 696170, 1070159, 1392340, 2140318, 4280636, 5350795, 10701590, 21403180, 46016837, 92033674, 184067348, 230084185, 460168370, 920336740]

約数ペア:

[(1, 920336740), (2, 460168370), (4, 230084185), (5, 184067348), (10, 92033674), (20, 46016837), (43, 21403180), (86, 10701590), (172, 5350795), (215, 4280636), (430, 2140318), (661, 1392340), (860, 1070159), (1322, 696170), (1619, 568460), (2644, 348085), (3238, 284230), (3305, 278468), (6476, 142115), (6610, 139234), (8095, 113692), (13220, 69617), (16190, 56846), (28423, 32380)]