65084720

素因数分解:

$2^4\times 5^1\times {\mathrm{813559}}^1$

素因数の和:813572

約数の個数: 20

約数和(自身を含む): 151322160

約数和(自身を除く): 86237440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 813559, 1627118, 3254236, 4067795, 6508472, 8135590, 13016944, 16271180, 32542360, 65084720]

約数ペア:

[(1, 65084720), (2, 32542360), (4, 16271180), (5, 13016944), (8, 8135590), (10, 6508472), (16, 4067795), (20, 3254236), (40, 1627118), (80, 813559)]