207917220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495041}}^1$

素因数の和:495060

約数の個数: 48

約数和(自身を含む): 665336448

約数和(自身を除く): 457419228

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, 495041, 990082, 1485123, 1980164, 2475205, 2970246, 3465287, 4950410, 5940492, 6930574, 7425615, 9900820, 10395861, 13861148, 14851230, 17326435, 20791722, 29702460, 34652870, 41583444, 51979305, 69305740, 103958610, 207917220]

約数ペア:

[(1, 207917220), (2, 103958610), (3, 69305740), (4, 51979305), (5, 41583444), (6, 34652870), (7, 29702460), (10, 20791722), (12, 17326435), (14, 14851230), (15, 13861148), (20, 10395861), (21, 9900820), (28, 7425615), (30, 6930574), (35, 5940492), (42, 4950410), (60, 3465287), (70, 2970246), (84, 2475205), (105, 1980164), (140, 1485123), (210, 990082), (420, 495041)]