129690620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{381443}}^1$

素因数の和:381469

約数の個数: 24

約数和(自身を含む): 288371664

約数和(自身を除く): 158681044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 381443, 762886, 1525772, 1907215, 3814430, 6484531, 7628860, 12969062, 25938124, 32422655, 64845310, 129690620]

約数ペア:

[(1, 129690620), (2, 64845310), (4, 32422655), (5, 25938124), (10, 12969062), (17, 7628860), (20, 6484531), (34, 3814430), (68, 1907215), (85, 1525772), (170, 762886), (340, 381443)]