129740120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{41057}}^1$

素因数の和:41147

約数の個数: 32

約数和(自身を含む): 295617600

約数和(自身を除く): 165877480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 41057, 82114, 164228, 205285, 328456, 410570, 821140, 1642280, 3243503, 6487006, 12974012, 16217515, 25948024, 32435030, 64870060, 129740120]

約数ペア:

[(1, 129740120), (2, 64870060), (4, 32435030), (5, 25948024), (8, 16217515), (10, 12974012), (20, 6487006), (40, 3243503), (79, 1642280), (158, 821140), (316, 410570), (395, 328456), (632, 205285), (790, 164228), (1580, 82114), (3160, 41057)]