27421875

素因数分解:

$3^3\times 5^7\times {\mathrm{13}}^1$

素因数の和:57

約数の個数: 64

約数和(自身を含む): 54687360

約数和(自身を除く): 27265485

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 135, 195, 225, 325, 351, 375, 585, 625, 675, 975, 1125, 1625, 1755, 1875, 2925, 3125, 3375, 4875, 5625, 8125, 8775, 9375, 14625, 15625, 16875, 24375, 28125, 40625, 43875, 46875, 73125, 78125, 84375, 121875, 140625, 203125, 219375, 234375, 365625, 421875, 609375, 703125, 1015625, 1096875, 1828125, 2109375, 3046875, 5484375, 9140625, 27421875]

約数ペア:

[(1, 27421875), (3, 9140625), (5, 5484375), (9, 3046875), (13, 2109375), (15, 1828125), (25, 1096875), (27, 1015625), (39, 703125), (45, 609375), (65, 421875), (75, 365625), (117, 234375), (125, 219375), (135, 203125), (195, 140625), (225, 121875), (325, 84375), (351, 78125), (375, 73125), (585, 46875), (625, 43875), (675, 40625), (975, 28125), (1125, 24375), (1625, 16875), (1755, 15625), (1875, 14625), (2925, 9375), (3125, 8775), (3375, 8125), (4875, 5625)]