68680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:129

約数の個数: 32

約数和(自身を含む): 165240

約数和(自身を除く): 96560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 808, 1010, 1717, 2020, 3434, 4040, 6868, 8585, 13736, 17170, 34340, 68680]

約数ペア:

[(1, 68680), (2, 34340), (4, 17170), (5, 13736), (8, 8585), (10, 6868), (17, 4040), (20, 3434), (34, 2020), (40, 1717), (68, 1010), (85, 808), (101, 680), (136, 505), (170, 404), (202, 340)]