130646720

素因数分解:

$2^6\times 5^1\times {\mathrm{408271}}^1$

素因数の和:408288

約数の個数: 28

約数和(自身を含む): 311103264

約数和(自身を除く): 180456544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 408271, 816542, 1633084, 2041355, 3266168, 4082710, 6532336, 8165420, 13064672, 16330840, 26129344, 32661680, 65323360, 130646720]

約数ペア:

[(1, 130646720), (2, 65323360), (4, 32661680), (5, 26129344), (8, 16330840), (10, 13064672), (16, 8165420), (20, 6532336), (32, 4082710), (40, 3266168), (64, 2041355), (80, 1633084), (160, 816542), (320, 408271)]