81970120

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{5407}}^1$

素因数の和:5797

約数の個数: 32

約数和(自身を含む): 184953600

約数和(自身を除く): 102983480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 3032, 3790, 5407, 7580, 10814, 15160, 21628, 27035, 43256, 54070, 108140, 216280, 2049253, 4098506, 8197012, 10246265, 16394024, 20492530, 40985060, 81970120]

約数ペア:

[(1, 81970120), (2, 40985060), (4, 20492530), (5, 16394024), (8, 10246265), (10, 8197012), (20, 4098506), (40, 2049253), (379, 216280), (758, 108140), (1516, 54070), (1895, 43256), (3032, 27035), (3790, 21628), (5407, 15160), (7580, 10814)]