81870710

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{4051}}^1$

素因数の和:4148

約数の個数: 32

約数和(自身を含む): 154040832

約数和(自身を除く): 72170122

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 2021, 4042, 4051, 8102, 10105, 20210, 20255, 40510, 174193, 190397, 348386, 380794, 870965, 951985, 1741930, 1903970, 8187071, 16374142, 40935355, 81870710]

約数ペア:

[(1, 81870710), (2, 40935355), (5, 16374142), (10, 8187071), (43, 1903970), (47, 1741930), (86, 951985), (94, 870965), (215, 380794), (235, 348386), (430, 190397), (470, 174193), (2021, 40510), (4042, 20255), (4051, 20210), (8102, 10105)]