19278680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28351}}^1$

素因数の和:28379

約数の個数: 32

約数和(自身を含む): 45930240

約数和(自身を除く): 26651560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 28351, 56702, 113404, 141755, 226808, 283510, 481967, 567020, 963934, 1134040, 1927868, 2409835, 3855736, 4819670, 9639340, 19278680]

約数ペア:

[(1, 19278680), (2, 9639340), (4, 4819670), (5, 3855736), (8, 2409835), (10, 1927868), (17, 1134040), (20, 963934), (34, 567020), (40, 481967), (68, 283510), (85, 226808), (136, 141755), (170, 113404), (340, 56702), (680, 28351)]