128600220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{306191}}^1$

素因数の和:306210

約数の個数: 48

約数和(自身を含む): 411522048

約数和(自身を除く): 282921828

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, 306191, 612382, 918573, 1224764, 1530955, 1837146, 2143337, 3061910, 3674292, 4286674, 4592865, 6123820, 6430011, 8573348, 9185730, 10716685, 12860022, 18371460, 21433370, 25720044, 32150055, 42866740, 64300110, 128600220]

約数ペア:

[(1, 128600220), (2, 64300110), (3, 42866740), (4, 32150055), (5, 25720044), (6, 21433370), (7, 18371460), (10, 12860022), (12, 10716685), (14, 9185730), (15, 8573348), (20, 6430011), (21, 6123820), (28, 4592865), (30, 4286674), (35, 3674292), (42, 3061910), (60, 2143337), (70, 1837146), (84, 1530955), (105, 1224764), (140, 918573), (210, 612382), (420, 306191)]