81537975

素因数分解:

$3^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1069}}^1$

素因数の和:1201

約数の個数: 48

約数和(自身を含む): 151255200

約数和(自身を除く): 69717225

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 113, 135, 225, 339, 565, 675, 1017, 1069, 1695, 2825, 3051, 3207, 5085, 5345, 8475, 9621, 15255, 16035, 25425, 26725, 28863, 48105, 76275, 80175, 120797, 144315, 240525, 362391, 603985, 721575, 1087173, 1811955, 3019925, 3261519, 5435865, 9059775, 16307595, 27179325, 81537975]

約数ペア:

[(1, 81537975), (3, 27179325), (5, 16307595), (9, 9059775), (15, 5435865), (25, 3261519), (27, 3019925), (45, 1811955), (75, 1087173), (113, 721575), (135, 603985), (225, 362391), (339, 240525), (565, 144315), (675, 120797), (1017, 80175), (1069, 76275), (1695, 48105), (2825, 28863), (3051, 26725), (3207, 25425), (5085, 16035), (5345, 15255), (8475, 9621)]