28771875

素因数分解:

$3^3\times 5^5\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:76

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 31224285

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 31, 33, 45, 55, 75, 93, 99, 125, 135, 155, 165, 225, 275, 279, 297, 341, 375, 465, 495, 625, 675, 775, 825, 837, 1023, 1125, 1375, 1395, 1485, 1705, 1875, 2325, 2475, 3069, 3125, 3375, 3875, 4125, 4185, 5115, 5625, 6875, 6975, 7425, 8525, 9207, 9375, 11625, 12375, 15345, 16875, 19375, 20625, 20925, 25575, 28125, 34375, 34875, 37125, 42625, 46035, 58125, 61875, 76725, 84375, 96875, 103125, 104625, 127875, 174375, 185625, 213125, 230175, 290625, 309375, 383625, 523125, 639375, 871875, 928125, 1065625, 1150875, 1918125, 2615625, 3196875, 5754375, 9590625, 28771875]

約数ペア:

[(1, 28771875), (3, 9590625), (5, 5754375), (9, 3196875), (11, 2615625), (15, 1918125), (25, 1150875), (27, 1065625), (31, 928125), (33, 871875), (45, 639375), (55, 523125), (75, 383625), (93, 309375), (99, 290625), (125, 230175), (135, 213125), (155, 185625), (165, 174375), (225, 127875), (275, 104625), (279, 103125), (297, 96875), (341, 84375), (375, 76725), (465, 61875), (495, 58125), (625, 46035), (675, 42625), (775, 37125), (825, 34875), (837, 34375), (1023, 28125), (1125, 25575), (1375, 20925), (1395, 20625), (1485, 19375), (1705, 16875), (1875, 15345), (2325, 12375), (2475, 11625), (3069, 9375), (3125, 9207), (3375, 8525), (3875, 7425), (4125, 6975), (4185, 6875), (5115, 5625)]