400310080

素因数分解:

$2^6\times 5^1\times {\mathrm{1250969}}^1$

素因数の和:1250986

約数の個数: 28

約数和(自身を含む): 953239140

約数和(自身を除く): 552929060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1250969, 2501938, 5003876, 6254845, 10007752, 12509690, 20015504, 25019380, 40031008, 50038760, 80062016, 100077520, 200155040, 400310080]

約数ペア:

[(1, 400310080), (2, 200155040), (4, 100077520), (5, 80062016), (8, 50038760), (10, 40031008), (16, 25019380), (20, 20015504), (32, 12509690), (40, 10007752), (64, 6254845), (80, 5003876), (160, 2501938), (320, 1250969)]