201739480

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{16217}}^1$

素因数の和:16539

約数の個数: 32

約数和(自身を含む): 455401440

約数和(自身を除く): 253661960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 16217, 32434, 64868, 81085, 129736, 162170, 324340, 648680, 5043487, 10086974, 20173948, 25217435, 40347896, 50434870, 100869740, 201739480]

約数ペア:

[(1, 201739480), (2, 100869740), (4, 50434870), (5, 40347896), (8, 25217435), (10, 20173948), (20, 10086974), (40, 5043487), (311, 648680), (622, 324340), (1244, 162170), (1555, 129736), (2488, 81085), (3110, 64868), (6220, 32434), (12440, 16217)]