178450

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 24

約数和(自身を含む): 343728

約数和(自身を除く): 165278

約数列:

[1, 2, 5, 10, 25, 43, 50, 83, 86, 166, 215, 415, 430, 830, 1075, 2075, 2150, 3569, 4150, 7138, 17845, 35690, 89225, 178450]

約数ペア:

[(1, 178450), (2, 89225), (5, 35690), (10, 17845), (25, 7138), (43, 4150), (50, 3569), (83, 2150), (86, 2075), (166, 1075), (215, 830), (415, 430)]