64817080

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2003}}^1$

素因数の和:2823

約数の個数: 32

約数和(自身を含む): 146091600

約数和(自身を除く): 81274520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2003, 3236, 4006, 4045, 6472, 8012, 8090, 10015, 16024, 16180, 20030, 32360, 40060, 80120, 1620427, 3240854, 6481708, 8102135, 12963416, 16204270, 32408540, 64817080]

約数ペア:

[(1, 64817080), (2, 32408540), (4, 16204270), (5, 12963416), (8, 8102135), (10, 6481708), (20, 3240854), (40, 1620427), (809, 80120), (1618, 40060), (2003, 32360), (3236, 20030), (4006, 16180), (4045, 16024), (6472, 10015), (8012, 8090)]