20935960

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1381}}^1$

素因数の和:1771

約数の個数: 32

約数和(自身を含む): 47264400

約数和(自身を除く): 26328440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1381, 1516, 1895, 2762, 3032, 3790, 5524, 6905, 7580, 11048, 13810, 15160, 27620, 55240, 523399, 1046798, 2093596, 2616995, 4187192, 5233990, 10467980, 20935960]

約数ペア:

[(1, 20935960), (2, 10467980), (4, 5233990), (5, 4187192), (8, 2616995), (10, 2093596), (20, 1046798), (40, 523399), (379, 55240), (758, 27620), (1381, 15160), (1516, 13810), (1895, 11048), (2762, 7580), (3032, 6905), (3790, 5524)]