42905380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43781}}^1$

素因数の和:43804

約数の個数: 36

約数和(自身を含む): 104814108

約数和(自身を除く): 61908728

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 43781, 87562, 175124, 218905, 306467, 437810, 612934, 875620, 1225868, 1532335, 2145269, 3064670, 4290538, 6129340, 8581076, 10726345, 21452690, 42905380]

約数ペア:

[(1, 42905380), (2, 21452690), (4, 10726345), (5, 8581076), (7, 6129340), (10, 4290538), (14, 3064670), (20, 2145269), (28, 1532335), (35, 1225868), (49, 875620), (70, 612934), (98, 437810), (140, 306467), (196, 218905), (245, 175124), (490, 87562), (980, 43781)]