172141240

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{3923}}^1$

素因数の和:5031

約数の個数: 32

約数和(自身を含む): 387769680

約数和(自身を除く): 215628440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 2194, 3923, 4388, 5485, 7846, 8776, 10970, 15692, 19615, 21940, 31384, 39230, 43880, 78460, 156920, 4303531, 8607062, 17214124, 21517655, 34428248, 43035310, 86070620, 172141240]

約数ペア:

[(1, 172141240), (2, 86070620), (4, 43035310), (5, 34428248), (8, 21517655), (10, 17214124), (20, 8607062), (40, 4303531), (1097, 156920), (2194, 78460), (3923, 43880), (4388, 39230), (5485, 31384), (7846, 21940), (8776, 19615), (10970, 15692)]