123389120

素因数分解:

$2^6\times 5^1\times {\mathrm{385591}}^1$

素因数の和:385608

約数の個数: 28

約数和(自身を含む): 293821104

約数和(自身を除く): 170431984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 385591, 771182, 1542364, 1927955, 3084728, 3855910, 6169456, 7711820, 12338912, 15423640, 24677824, 30847280, 61694560, 123389120]

約数ペア:

[(1, 123389120), (2, 61694560), (4, 30847280), (5, 24677824), (8, 15423640), (10, 12338912), (16, 7711820), (20, 6169456), (32, 3855910), (40, 3084728), (64, 1927955), (80, 1542364), (160, 771182), (320, 385591)]