291228140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2080201}}^1$

素因数の和:2080217

約数の個数: 24

約数和(自身を含む): 698947872

約数和(自身を除く): 407719732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2080201, 4160402, 8320804, 10401005, 14561407, 20802010, 29122814, 41604020, 58245628, 72807035, 145614070, 291228140]

約数ペア:

[(1, 291228140), (2, 145614070), (4, 72807035), (5, 58245628), (7, 41604020), (10, 29122814), (14, 20802010), (20, 14561407), (28, 10401005), (35, 8320804), (70, 4160402), (140, 2080201)]