81793125

素因数分解:

$3^3\times 5^4\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:197

約数の個数: 80

約数和(自身を含む): 156699840

約数和(自身を除く): 74906715

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 111, 125, 131, 135, 185, 225, 333, 375, 393, 555, 625, 655, 675, 925, 999, 1125, 1179, 1665, 1875, 1965, 2775, 3275, 3375, 3537, 4625, 4847, 4995, 5625, 5895, 8325, 9825, 13875, 14541, 16375, 16875, 17685, 23125, 24235, 24975, 29475, 41625, 43623, 49125, 69375, 72705, 81875, 88425, 121175, 124875, 130869, 147375, 208125, 218115, 245625, 363525, 442125, 605875, 624375, 654345, 736875, 1090575, 1817625, 2210625, 3029375, 3271725, 5452875, 9088125, 16358625, 27264375, 81793125]

約数ペア:

[(1, 81793125), (3, 27264375), (5, 16358625), (9, 9088125), (15, 5452875), (25, 3271725), (27, 3029375), (37, 2210625), (45, 1817625), (75, 1090575), (111, 736875), (125, 654345), (131, 624375), (135, 605875), (185, 442125), (225, 363525), (333, 245625), (375, 218115), (393, 208125), (555, 147375), (625, 130869), (655, 124875), (675, 121175), (925, 88425), (999, 81875), (1125, 72705), (1179, 69375), (1665, 49125), (1875, 43623), (1965, 41625), (2775, 29475), (3275, 24975), (3375, 24235), (3537, 23125), (4625, 17685), (4847, 16875), (4995, 16375), (5625, 14541), (5895, 13875), (8325, 9825)]