66952840

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2069}}^1$

素因数の和:2889

約数の個数: 32

約数和(自身を含む): 150903000

約数和(自身を除く): 83950160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2069, 3236, 4045, 4138, 6472, 8090, 8276, 10345, 16180, 16552, 20690, 32360, 41380, 82760, 1673821, 3347642, 6695284, 8369105, 13390568, 16738210, 33476420, 66952840]

約数ペア:

[(1, 66952840), (2, 33476420), (4, 16738210), (5, 13390568), (8, 8369105), (10, 6695284), (20, 3347642), (40, 1673821), (809, 82760), (1618, 41380), (2069, 32360), (3236, 20690), (4045, 16552), (4138, 16180), (6472, 10345), (8090, 8276)]