245426620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{721843}}^1$

素因数の和:721869

約数の個数: 24

約数和(自身を含む): 545714064

約数和(自身を除く): 300287444

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 721843, 1443686, 2887372, 3609215, 7218430, 12271331, 14436860, 24542662, 49085324, 61356655, 122713310, 245426620]

約数ペア:

[(1, 245426620), (2, 122713310), (4, 61356655), (5, 49085324), (10, 24542662), (17, 14436860), (20, 12271331), (34, 7218430), (68, 3609215), (85, 2887372), (170, 1443686), (340, 721843)]