18097900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2634

約数の個数: 36

約数和(自身を含む): 39841200

約数和(自身を除く): 21743300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 2549, 3550, 5098, 7100, 10196, 12745, 25490, 50980, 63725, 127450, 180979, 254900, 361958, 723916, 904895, 1809790, 3619580, 4524475, 9048950, 18097900]

約数ペア:

[(1, 18097900), (2, 9048950), (4, 4524475), (5, 3619580), (10, 1809790), (20, 904895), (25, 723916), (50, 361958), (71, 254900), (100, 180979), (142, 127450), (284, 63725), (355, 50980), (710, 25490), (1420, 12745), (1775, 10196), (2549, 7100), (3550, 5098)]