398931440

素因数分解:

$2^4\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{4111}}^1$

素因数の和:5337

約数の個数: 40

約数和(自身を含む): 928506048

約数和(自身を除く): 529574608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1213, 2426, 4111, 4852, 6065, 8222, 9704, 12130, 16444, 19408, 20555, 24260, 32888, 41110, 48520, 65776, 82220, 97040, 164440, 328880, 4986643, 9973286, 19946572, 24933215, 39893144, 49866430, 79786288, 99732860, 199465720, 398931440]

約数ペア:

[(1, 398931440), (2, 199465720), (4, 99732860), (5, 79786288), (8, 49866430), (10, 39893144), (16, 24933215), (20, 19946572), (40, 9973286), (80, 4986643), (1213, 328880), (2426, 164440), (4111, 97040), (4852, 82220), (6065, 65776), (8222, 48520), (9704, 41110), (12130, 32888), (16444, 24260), (19408, 20555)]