127552400

素因数分解:

$2^4\times 5^2\times {\mathrm{318881}}^1$

素因数の和:318899

約数の個数: 30

約数和(自身を含む): 306445602

約数和(自身を除く): 178893202

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 318881, 637762, 1275524, 1594405, 2551048, 3188810, 5102096, 6377620, 7972025, 12755240, 15944050, 25510480, 31888100, 63776200, 127552400]

約数ペア:

[(1, 127552400), (2, 63776200), (4, 31888100), (5, 25510480), (8, 15944050), (10, 12755240), (16, 7972025), (20, 6377620), (25, 5102096), (40, 3188810), (50, 2551048), (80, 1594405), (100, 1275524), (200, 637762), (400, 318881)]