19457020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1499}}^1$

素因数の和:1578

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 25902980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1499, 2596, 2998, 3245, 5996, 6490, 7495, 12980, 14990, 16489, 29980, 32978, 65956, 82445, 88441, 164890, 176882, 329780, 353764, 442205, 884410, 972851, 1768820, 1945702, 3891404, 4864255, 9728510, 19457020]

約数ペア:

[(1, 19457020), (2, 9728510), (4, 4864255), (5, 3891404), (10, 1945702), (11, 1768820), (20, 972851), (22, 884410), (44, 442205), (55, 353764), (59, 329780), (110, 176882), (118, 164890), (220, 88441), (236, 82445), (295, 65956), (590, 32978), (649, 29980), (1180, 16489), (1298, 14990), (1499, 12980), (2596, 7495), (2998, 6490), (3245, 5996)]