81642750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{15551}}^1$

素因数の和:15578

約数の個数: 64

約数和(自身を含む): 232906752

約数和(自身を除く): 151264002

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 750, 875, 1050, 1750, 2625, 5250, 15551, 31102, 46653, 77755, 93306, 108857, 155510, 217714, 233265, 326571, 388775, 466530, 544285, 653142, 777550, 1088570, 1166325, 1632855, 1943875, 2332650, 2721425, 3265710, 3887750, 5442850, 5831625, 8164275, 11663250, 13607125, 16328550, 27214250, 40821375, 81642750]

約数ペア:

[(1, 81642750), (2, 40821375), (3, 27214250), (5, 16328550), (6, 13607125), (7, 11663250), (10, 8164275), (14, 5831625), (15, 5442850), (21, 3887750), (25, 3265710), (30, 2721425), (35, 2332650), (42, 1943875), (50, 1632855), (70, 1166325), (75, 1088570), (105, 777550), (125, 653142), (150, 544285), (175, 466530), (210, 388775), (250, 326571), (350, 233265), (375, 217714), (525, 155510), (750, 108857), (875, 93306), (1050, 77755), (1750, 46653), (2625, 31102), (5250, 15551)]