20478124

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{1187}}^1$

素因数の和:1437

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 17442836

約数列:

[1, 2, 4, 19, 38, 76, 227, 454, 908, 1187, 2374, 4313, 4748, 8626, 17252, 22553, 45106, 90212, 269449, 538898, 1077796, 5119531, 10239062, 20478124]

約数ペア:

[(1, 20478124), (2, 10239062), (4, 5119531), (19, 1077796), (38, 538898), (76, 269449), (227, 90212), (454, 45106), (908, 22553), (1187, 17252), (2374, 8626), (4313, 4748)]