18173980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{82609}}^1$

素因数の和:82629

約数の個数: 24

約数和(自身を含む): 41635440

約数和(自身を除く): 23461460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 82609, 165218, 330436, 413045, 826090, 908699, 1652180, 1817398, 3634796, 4543495, 9086990, 18173980]

約数ペア:

[(1, 18173980), (2, 9086990), (4, 4543495), (5, 3634796), (10, 1817398), (11, 1652180), (20, 908699), (22, 826090), (44, 413045), (55, 330436), (110, 165218), (220, 82609)]