3121875

素因数分解:

$3^3\times 5^5\times {\mathrm{37}}^1$

素因数の和:71

約数の個数: 48

約数和(自身を含む): 5937120

約数和(自身を除く): 2815245

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 125, 135, 185, 225, 333, 375, 555, 625, 675, 925, 999, 1125, 1665, 1875, 2775, 3125, 3375, 4625, 4995, 5625, 8325, 9375, 13875, 16875, 23125, 24975, 28125, 41625, 69375, 84375, 115625, 124875, 208125, 346875, 624375, 1040625, 3121875]

約数ペア:

[(1, 3121875), (3, 1040625), (5, 624375), (9, 346875), (15, 208125), (25, 124875), (27, 115625), (37, 84375), (45, 69375), (75, 41625), (111, 28125), (125, 24975), (135, 23125), (185, 16875), (225, 13875), (333, 9375), (375, 8325), (555, 5625), (625, 4995), (675, 4625), (925, 3375), (999, 3125), (1125, 2775), (1665, 1875)]