209300180

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{197453}}^1$

素因数の和:197515

約数の個数: 24

約数和(自身を含む): 447825672

約数和(自身を除く): 238525492

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 197453, 394906, 789812, 987265, 1974530, 3949060, 10465009, 20930018, 41860036, 52325045, 104650090, 209300180]

約数ペア:

[(1, 209300180), (2, 104650090), (4, 52325045), (5, 41860036), (10, 20930018), (20, 10465009), (53, 3949060), (106, 1974530), (212, 987265), (265, 789812), (530, 394906), (1060, 197453)]