199660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 428400

約数和(自身を除く): 228740

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 149, 268, 298, 335, 596, 670, 745, 1340, 1490, 2980, 9983, 19966, 39932, 49915, 99830, 199660]

約数ペア:

[(1, 199660), (2, 99830), (4, 49915), (5, 39932), (10, 19966), (20, 9983), (67, 2980), (134, 1490), (149, 1340), (268, 745), (298, 670), (335, 596)]