81084375

素因数分解:

$3^3\times 5^5\times {\mathrm{31}}^2$

素因数の和:96

約数の個数: 72

約数和(自身を含む): 155146320

約数和(自身を除く): 74061945

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 125, 135, 155, 225, 279, 375, 465, 625, 675, 775, 837, 961, 1125, 1395, 1875, 2325, 2883, 3125, 3375, 3875, 4185, 4805, 5625, 6975, 8649, 9375, 11625, 14415, 16875, 19375, 20925, 24025, 25947, 28125, 34875, 43245, 58125, 72075, 84375, 96875, 104625, 120125, 129735, 174375, 216225, 290625, 360375, 523125, 600625, 648675, 871875, 1081125, 1801875, 2615625, 3003125, 3243375, 5405625, 9009375, 16216875, 27028125, 81084375]

約数ペア:

[(1, 81084375), (3, 27028125), (5, 16216875), (9, 9009375), (15, 5405625), (25, 3243375), (27, 3003125), (31, 2615625), (45, 1801875), (75, 1081125), (93, 871875), (125, 648675), (135, 600625), (155, 523125), (225, 360375), (279, 290625), (375, 216225), (465, 174375), (625, 129735), (675, 120125), (775, 104625), (837, 96875), (961, 84375), (1125, 72075), (1395, 58125), (1875, 43245), (2325, 34875), (2883, 28125), (3125, 25947), (3375, 24025), (3875, 20925), (4185, 19375), (4805, 16875), (5625, 14415), (6975, 11625), (8649, 9375)]