137581240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83891}}^1$

素因数の和:83943

約数の個数: 32

約数和(自身を含む): 317111760

約数和(自身を除く): 179530520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 83891, 167782, 335564, 419455, 671128, 838910, 1677820, 3355640, 3439531, 6879062, 13758124, 17197655, 27516248, 34395310, 68790620, 137581240]

約数ペア:

[(1, 137581240), (2, 68790620), (4, 34395310), (5, 27516248), (8, 17197655), (10, 13758124), (20, 6879062), (40, 3439531), (41, 3355640), (82, 1677820), (164, 838910), (205, 671128), (328, 419455), (410, 335564), (820, 167782), (1640, 83891)]