128469375

素因数分解:

$3^3\times 5^4\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:383

約数の個数: 80

約数和(自身を含む): 248920320

約数和(自身を除く): 120450945

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 125, 135, 207, 225, 331, 345, 375, 575, 621, 625, 675, 993, 1035, 1125, 1655, 1725, 1875, 2875, 2979, 3105, 3375, 4965, 5175, 5625, 7613, 8275, 8625, 8937, 14375, 14895, 15525, 16875, 22839, 24825, 25875, 38065, 41375, 43125, 44685, 68517, 74475, 77625, 114195, 124125, 129375, 190325, 205551, 206875, 223425, 342585, 372375, 388125, 570975, 620625, 951625, 1027755, 1117125, 1712925, 1861875, 2854875, 4758125, 5138775, 5585625, 8564625, 14274375, 25693875, 42823125, 128469375]

約数ペア:

[(1, 128469375), (3, 42823125), (5, 25693875), (9, 14274375), (15, 8564625), (23, 5585625), (25, 5138775), (27, 4758125), (45, 2854875), (69, 1861875), (75, 1712925), (115, 1117125), (125, 1027755), (135, 951625), (207, 620625), (225, 570975), (331, 388125), (345, 372375), (375, 342585), (575, 223425), (621, 206875), (625, 205551), (675, 190325), (993, 129375), (1035, 124125), (1125, 114195), (1655, 77625), (1725, 74475), (1875, 68517), (2875, 44685), (2979, 43125), (3105, 41375), (3375, 38065), (4965, 25875), (5175, 24825), (5625, 22839), (7613, 16875), (8275, 15525), (8625, 14895), (8937, 14375)]