667027960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{234869}}^1$

素因数の和:234951

約数の個数: 32

約数和(自身を含む): 1521957600

約数和(自身を除く): 854929640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 234869, 469738, 939476, 1174345, 1878952, 2348690, 4697380, 9394760, 16675699, 33351398, 66702796, 83378495, 133405592, 166756990, 333513980, 667027960]

約数ペア:

[(1, 667027960), (2, 333513980), (4, 166756990), (5, 133405592), (8, 83378495), (10, 66702796), (20, 33351398), (40, 16675699), (71, 9394760), (142, 4697380), (284, 2348690), (355, 1878952), (568, 1174345), (710, 939476), (1420, 469738), (2840, 234869)]