31661225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 13335895

約数列:

[1, 5, 17, 23, 25, 41, 79, 85, 115, 205, 391, 395, 425, 575, 697, 943, 1025, 1343, 1817, 1955, 1975, 3239, 3485, 4715, 6715, 9085, 9775, 16031, 16195, 17425, 23575, 30889, 33575, 45425, 55063, 74497, 80155, 80975, 154445, 275315, 372485, 400775, 772225, 1266449, 1376575, 1862425, 6332245, 31661225]

約数ペア:

[(1, 31661225), (5, 6332245), (17, 1862425), (23, 1376575), (25, 1266449), (41, 772225), (79, 400775), (85, 372485), (115, 275315), (205, 154445), (391, 80975), (395, 80155), (425, 74497), (575, 55063), (697, 45425), (943, 33575), (1025, 30889), (1343, 23575), (1817, 17425), (1955, 16195), (1975, 16031), (3239, 9775), (3485, 9085), (4715, 6715)]