128979025

素因数分解:

$5^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{499}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 187302000

約数和(自身を除く): 58322975

約数列:

[1, 5, 7, 25, 35, 49, 175, 211, 245, 499, 1055, 1225, 1477, 2495, 3493, 5275, 7385, 10339, 12475, 17465, 24451, 36925, 51695, 87325, 105289, 122255, 258475, 526445, 611275, 737023, 2632225, 3685115, 5159161, 18425575, 25795805, 128979025]

約数ペア:

[(1, 128979025), (5, 25795805), (7, 18425575), (25, 5159161), (35, 3685115), (49, 2632225), (175, 737023), (211, 611275), (245, 526445), (499, 258475), (1055, 122255), (1225, 105289), (1477, 87325), (2495, 51695), (3493, 36925), (5275, 24451), (7385, 17465), (10339, 12475)]