31688860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1499}}^1$

素因数の和:1666

約数の個数: 48

約数和(自身を含む): 76608000

約数和(自身を除く): 44919140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1057, 1499, 1510, 2114, 2998, 3020, 4228, 5285, 5996, 7495, 10493, 10570, 14990, 20986, 21140, 29980, 41972, 52465, 104930, 209860, 226349, 452698, 905396, 1131745, 1584443, 2263490, 3168886, 4526980, 6337772, 7922215, 15844430, 31688860]

約数ペア:

[(1, 31688860), (2, 15844430), (4, 7922215), (5, 6337772), (7, 4526980), (10, 3168886), (14, 2263490), (20, 1584443), (28, 1131745), (35, 905396), (70, 452698), (140, 226349), (151, 209860), (302, 104930), (604, 52465), (755, 41972), (1057, 29980), (1499, 21140), (1510, 20986), (2114, 14990), (2998, 10570), (3020, 10493), (4228, 7495), (5285, 5996)]