71291960

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{16657}}^1$

素因数の和:16775

約数の個数: 32

約数和(自身を含む): 161915760

約数和(自身を除く): 90623800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 16657, 33314, 66628, 83285, 133256, 166570, 333140, 666280, 1782299, 3564598, 7129196, 8911495, 14258392, 17822990, 35645980, 71291960]

約数ペア:

[(1, 71291960), (2, 35645980), (4, 17822990), (5, 14258392), (8, 8911495), (10, 7129196), (20, 3564598), (40, 1782299), (107, 666280), (214, 333140), (428, 166570), (535, 133256), (856, 83285), (1070, 66628), (2140, 33314), (4280, 16657)]