81169875

素因数分解:

$3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{3137}}^1$

素因数の和:3181

約数の個数: 48

約数和(自身を含む): 152732736

約数和(自身を除く): 71562861

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 1035, 1125, 1725, 2875, 3137, 5175, 8625, 9411, 15685, 25875, 28233, 47055, 72151, 78425, 141165, 216453, 235275, 360755, 392125, 649359, 705825, 1082265, 1176375, 1803775, 3246795, 3529125, 5411325, 9018875, 16233975, 27056625, 81169875]

約数ペア:

[(1, 81169875), (3, 27056625), (5, 16233975), (9, 9018875), (15, 5411325), (23, 3529125), (25, 3246795), (45, 1803775), (69, 1176375), (75, 1082265), (115, 705825), (125, 649359), (207, 392125), (225, 360755), (345, 235275), (375, 216453), (575, 141165), (1035, 78425), (1125, 72151), (1725, 47055), (2875, 28233), (3137, 25875), (5175, 15685), (8625, 9411)]