20248540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1657}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 46795392

約数和(自身を除く): 26546852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 1657, 2444, 3055, 3314, 6110, 6628, 8285, 12220, 16570, 21541, 33140, 43082, 77879, 86164, 107705, 155758, 215410, 311516, 389395, 430820, 778790, 1012427, 1557580, 2024854, 4049708, 5062135, 10124270, 20248540]

約数ペア:

[(1, 20248540), (2, 10124270), (4, 5062135), (5, 4049708), (10, 2024854), (13, 1557580), (20, 1012427), (26, 778790), (47, 430820), (52, 389395), (65, 311516), (94, 215410), (130, 155758), (188, 107705), (235, 86164), (260, 77879), (470, 43082), (611, 33140), (940, 21541), (1222, 16570), (1657, 12220), (2444, 8285), (3055, 6628), (3314, 6110)]