131521490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{859}}^1$

素因数の和:1178

約数の個数: 32

約数和(自身を含む): 241859520

約数和(自身を除く): 110338030

約数列:

[1, 2, 5, 10, 61, 122, 251, 305, 502, 610, 859, 1255, 1718, 2510, 4295, 8590, 15311, 30622, 52399, 76555, 104798, 153110, 215609, 261995, 431218, 523990, 1078045, 2156090, 13152149, 26304298, 65760745, 131521490]

約数ペア:

[(1, 131521490), (2, 65760745), (5, 26304298), (10, 13152149), (61, 2156090), (122, 1078045), (251, 523990), (305, 431218), (502, 261995), (610, 215609), (859, 153110), (1255, 104798), (1718, 76555), (2510, 52399), (4295, 30622), (8590, 15311)]