542220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1291}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 1736448

約数和(自身を除く): 1194228

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, 1291, 2582, 3873, 5164, 6455, 7746, 9037, 12910, 15492, 18074, 19365, 25820, 27111, 36148, 38730, 45185, 54222, 77460, 90370, 108444, 135555, 180740, 271110, 542220]

約数ペア:

[(1, 542220), (2, 271110), (3, 180740), (4, 135555), (5, 108444), (6, 90370), (7, 77460), (10, 54222), (12, 45185), (14, 38730), (15, 36148), (20, 27111), (21, 25820), (28, 19365), (30, 18074), (35, 15492), (42, 12910), (60, 9037), (70, 7746), (84, 6455), (105, 5164), (140, 3873), (210, 2582), (420, 1291)]