28768675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 13228637

約数列:

[1, 5, 13, 17, 25, 41, 65, 85, 127, 205, 221, 325, 425, 533, 635, 697, 1025, 1105, 1651, 2159, 2665, 3175, 3485, 5207, 5525, 8255, 9061, 10795, 13325, 17425, 26035, 28067, 41275, 45305, 53975, 67691, 88519, 130175, 140335, 226525, 338455, 442595, 701675, 1150747, 1692275, 2212975, 5753735, 28768675]

約数ペア:

[(1, 28768675), (5, 5753735), (13, 2212975), (17, 1692275), (25, 1150747), (41, 701675), (65, 442595), (85, 338455), (127, 226525), (205, 140335), (221, 130175), (325, 88519), (425, 67691), (533, 53975), (635, 45305), (697, 41275), (1025, 28067), (1105, 26035), (1651, 17425), (2159, 13325), (2665, 10795), (3175, 9061), (3485, 8255), (5207, 5525)]