320260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 685440

約数和(自身を除く): 365180

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 239, 268, 335, 478, 670, 956, 1195, 1340, 2390, 4780, 16013, 32026, 64052, 80065, 160130, 320260]

約数ペア:

[(1, 320260), (2, 160130), (4, 80065), (5, 64052), (10, 32026), (20, 16013), (67, 4780), (134, 2390), (239, 1340), (268, 1195), (335, 956), (478, 670)]