20766560

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1213}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 49560336

約数和(自身を除く): 28793776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1213, 1712, 2140, 2426, 3424, 4280, 4852, 6065, 8560, 9704, 12130, 17120, 19408, 24260, 38816, 48520, 97040, 129791, 194080, 259582, 519164, 648955, 1038328, 1297910, 2076656, 2595820, 4153312, 5191640, 10383280, 20766560]

約数ペア:

[(1, 20766560), (2, 10383280), (4, 5191640), (5, 4153312), (8, 2595820), (10, 2076656), (16, 1297910), (20, 1038328), (32, 648955), (40, 519164), (80, 259582), (107, 194080), (160, 129791), (214, 97040), (428, 48520), (535, 38816), (856, 24260), (1070, 19408), (1213, 17120), (1712, 12130), (2140, 9704), (2426, 8560), (3424, 6065), (4280, 4852)]