388773980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2776957}}^1$

素因数の和:2776973

約数の個数: 24

約数和(自身を含む): 933057888

約数和(自身を除く): 544283908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2776957, 5553914, 11107828, 13884785, 19438699, 27769570, 38877398, 55539140, 77754796, 97193495, 194386990, 388773980]

約数ペア:

[(1, 388773980), (2, 194386990), (4, 97193495), (5, 77754796), (7, 55539140), (10, 38877398), (14, 27769570), (20, 19438699), (28, 13884785), (35, 11107828), (70, 5553914), (140, 2776957)]