25996490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:974

約数の個数: 32

約数和(自身を含む): 50633856

約数和(自身を除く): 24637366

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 643, 1286, 1555, 3110, 3215, 4043, 6430, 8086, 8359, 16718, 20215, 40430, 41795, 83590, 199973, 399946, 999865, 1999730, 2599649, 5199298, 12998245, 25996490]

約数ペア:

[(1, 25996490), (2, 12998245), (5, 5199298), (10, 2599649), (13, 1999730), (26, 999865), (65, 399946), (130, 199973), (311, 83590), (622, 41795), (643, 40430), (1286, 20215), (1555, 16718), (3110, 8359), (3215, 8086), (4043, 6430)]