18586280

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3547}}^1$

素因数の和:3689

約数の個数: 32

約数和(自身を含む): 42150240

約数和(自身を除く): 23563960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3547, 5240, 7094, 14188, 17735, 28376, 35470, 70940, 141880, 464657, 929314, 1858628, 2323285, 3717256, 4646570, 9293140, 18586280]

約数ペア:

[(1, 18586280), (2, 9293140), (4, 4646570), (5, 3717256), (8, 2323285), (10, 1858628), (20, 929314), (40, 464657), (131, 141880), (262, 70940), (524, 35470), (655, 28376), (1048, 17735), (1310, 14188), (2620, 7094), (3547, 5240)]