40828120

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3881}}^1$

素因数の和:4155

約数の個数: 32

約数和(自身を含む): 92236320

約数和(自身を除く): 51408200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 3881, 5260, 7762, 10520, 15524, 19405, 31048, 38810, 77620, 155240, 1020703, 2041406, 4082812, 5103515, 8165624, 10207030, 20414060, 40828120]

約数ペア:

[(1, 40828120), (2, 20414060), (4, 10207030), (5, 8165624), (8, 5103515), (10, 4082812), (20, 2041406), (40, 1020703), (263, 155240), (526, 77620), (1052, 38810), (1315, 31048), (2104, 19405), (2630, 15524), (3881, 10520), (5260, 7762)]