19992680

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29401}}^1$

素因数の和:29429

約数の個数: 32

約数和(自身を含む): 47631240

約数和(自身を除く): 27638560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29401, 58802, 117604, 147005, 235208, 294010, 499817, 588020, 999634, 1176040, 1999268, 2499085, 3998536, 4998170, 9996340, 19992680]

約数ペア:

[(1, 19992680), (2, 9996340), (4, 4998170), (5, 3998536), (8, 2499085), (10, 1999268), (17, 1176040), (20, 999634), (34, 588020), (40, 499817), (68, 294010), (85, 235208), (136, 147005), (170, 117604), (340, 58802), (680, 29401)]