80686275

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 138276864

約数和(自身を除く): 57590589

約数列:

[1, 3, 5, 15, 25, 43, 75, 127, 129, 197, 215, 381, 591, 635, 645, 985, 1075, 1905, 2955, 3175, 3225, 4925, 5461, 8471, 9525, 14775, 16383, 25019, 25413, 27305, 42355, 75057, 81915, 125095, 127065, 136525, 211775, 375285, 409575, 625475, 635325, 1075817, 1876425, 3227451, 5379085, 16137255, 26895425, 80686275]

約数ペア:

[(1, 80686275), (3, 26895425), (5, 16137255), (15, 5379085), (25, 3227451), (43, 1876425), (75, 1075817), (127, 635325), (129, 625475), (197, 409575), (215, 375285), (381, 211775), (591, 136525), (635, 127065), (645, 125095), (985, 81915), (1075, 75057), (1905, 42355), (2955, 27305), (3175, 25413), (3225, 25019), (4925, 16383), (5461, 14775), (8471, 9525)]