30995240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7109}}^1$

素因数の和:7229

約数の個数: 32

約数和(自身を含む): 70389000

約数和(自身を除く): 39393760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 7109, 14218, 28436, 35545, 56872, 71090, 142180, 284360, 774881, 1549762, 3099524, 3874405, 6199048, 7748810, 15497620, 30995240]

約数ペア:

[(1, 30995240), (2, 15497620), (4, 7748810), (5, 6199048), (8, 3874405), (10, 3099524), (20, 1549762), (40, 774881), (109, 284360), (218, 142180), (436, 71090), (545, 56872), (872, 35545), (1090, 28436), (2180, 14218), (4360, 7109)]