81062840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{13421}}^1$

素因数の和:13583

約数の個数: 32

約数和(自身を含む): 183612960

約数和(自身を除く): 102550120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 13421, 26842, 53684, 67105, 107368, 134210, 268420, 536840, 2026571, 4053142, 8106284, 10132855, 16212568, 20265710, 40531420, 81062840]

約数ペア:

[(1, 81062840), (2, 40531420), (4, 20265710), (5, 16212568), (8, 10132855), (10, 8106284), (20, 4053142), (40, 2026571), (151, 536840), (302, 268420), (604, 134210), (755, 107368), (1208, 67105), (1510, 53684), (3020, 26842), (6040, 13421)]