20734140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49367}}^1$

素因数の和:49386

約数の個数: 48

約数和(自身を含む): 66350592

約数和(自身を除く): 45616452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49367, 98734, 148101, 197468, 246835, 296202, 345569, 493670, 592404, 691138, 740505, 987340, 1036707, 1382276, 1481010, 1727845, 2073414, 2962020, 3455690, 4146828, 5183535, 6911380, 10367070, 20734140]

約数ペア:

[(1, 20734140), (2, 10367070), (3, 6911380), (4, 5183535), (5, 4146828), (6, 3455690), (7, 2962020), (10, 2073414), (12, 1727845), (14, 1481010), (15, 1382276), (20, 1036707), (21, 987340), (28, 740505), (30, 691138), (35, 592404), (42, 493670), (60, 345569), (70, 296202), (84, 246835), (105, 197468), (140, 148101), (210, 98734), (420, 49367)]