131569205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 180351360

約数和(自身を除く): 48782155

約数列:

[1, 5, 17, 19, 41, 85, 95, 205, 323, 697, 779, 1615, 1987, 3485, 3895, 9935, 13243, 33779, 37753, 66215, 81467, 168895, 188765, 407335, 641801, 1384939, 1547873, 3209005, 6924695, 7739365, 26313841, 131569205]

約数ペア:

[(1, 131569205), (5, 26313841), (17, 7739365), (19, 6924695), (41, 3209005), (85, 1547873), (95, 1384939), (205, 641801), (323, 407335), (697, 188765), (779, 168895), (1615, 81467), (1987, 66215), (3485, 37753), (3895, 33779), (9935, 13243)]