199796680

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{74551}}^1$

素因数の和:74629

約数の個数: 32

約数和(自身を含む): 456258240

約数和(自身を除く): 256461560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 74551, 149102, 298204, 372755, 596408, 745510, 1491020, 2982040, 4994917, 9989834, 19979668, 24974585, 39959336, 49949170, 99898340, 199796680]

約数ペア:

[(1, 199796680), (2, 99898340), (4, 49949170), (5, 39959336), (8, 24974585), (10, 19979668), (20, 9989834), (40, 4994917), (67, 2982040), (134, 1491020), (268, 745510), (335, 596408), (536, 372755), (670, 298204), (1340, 149102), (2680, 74551)]