161755240

素因数分解:

$2^3\times 5^1\times {\mathrm{1723}}^1\times {\mathrm{2347}}^1$

素因数の和:4081

約数の個数: 32

約数和(自身を含む): 364315680

約数和(自身を除く): 202560440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1723, 2347, 3446, 4694, 6892, 8615, 9388, 11735, 13784, 17230, 18776, 23470, 34460, 46940, 68920, 93880, 4043881, 8087762, 16175524, 20219405, 32351048, 40438810, 80877620, 161755240]

約数ペア:

[(1, 161755240), (2, 80877620), (4, 40438810), (5, 32351048), (8, 20219405), (10, 16175524), (20, 8087762), (40, 4043881), (1723, 93880), (2347, 68920), (3446, 46940), (4694, 34460), (6892, 23470), (8615, 18776), (9388, 17230), (11735, 13784)]