128658375

素因数分解:

$3^4\times 5^3\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 80

約数和(自身を含む): 244179936

約数和(自身を除く): 115521561

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 97, 125, 131, 135, 225, 291, 375, 393, 405, 485, 655, 675, 873, 1125, 1179, 1455, 1965, 2025, 2425, 2619, 3275, 3375, 3537, 4365, 5895, 7275, 7857, 9825, 10125, 10611, 12125, 12707, 13095, 16375, 17685, 21825, 29475, 36375, 38121, 39285, 49125, 53055, 63535, 65475, 88425, 109125, 114363, 147375, 190605, 196425, 265275, 317675, 327375, 343089, 442125, 571815, 953025, 982125, 1029267, 1326375, 1588375, 1715445, 2859075, 4765125, 5146335, 8577225, 14295375, 25731675, 42886125, 128658375]

約数ペア:

[(1, 128658375), (3, 42886125), (5, 25731675), (9, 14295375), (15, 8577225), (25, 5146335), (27, 4765125), (45, 2859075), (75, 1715445), (81, 1588375), (97, 1326375), (125, 1029267), (131, 982125), (135, 953025), (225, 571815), (291, 442125), (375, 343089), (393, 327375), (405, 317675), (485, 265275), (655, 196425), (675, 190605), (873, 147375), (1125, 114363), (1179, 109125), (1455, 88425), (1965, 65475), (2025, 63535), (2425, 53055), (2619, 49125), (3275, 39285), (3375, 38121), (3537, 36375), (4365, 29475), (5895, 21825), (7275, 17685), (7857, 16375), (9825, 13095), (10125, 12707), (10611, 12125)]