20151250

素因数分解:

$2^1\times 5^4\times 7^3\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 80

約数和(自身を含む): 44985600

約数和(自身を除く): 24834350

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 47, 49, 50, 70, 94, 98, 125, 175, 235, 245, 250, 329, 343, 350, 470, 490, 625, 658, 686, 875, 1175, 1225, 1250, 1645, 1715, 1750, 2303, 2350, 2450, 3290, 3430, 4375, 4606, 5875, 6125, 8225, 8575, 8750, 11515, 11750, 12250, 16121, 16450, 17150, 23030, 29375, 30625, 32242, 41125, 42875, 57575, 58750, 61250, 80605, 82250, 85750, 115150, 161210, 205625, 214375, 287875, 403025, 411250, 428750, 575750, 806050, 1439375, 2015125, 2878750, 4030250, 10075625, 20151250]

約数ペア:

[(1, 20151250), (2, 10075625), (5, 4030250), (7, 2878750), (10, 2015125), (14, 1439375), (25, 806050), (35, 575750), (47, 428750), (49, 411250), (50, 403025), (70, 287875), (94, 214375), (98, 205625), (125, 161210), (175, 115150), (235, 85750), (245, 82250), (250, 80605), (329, 61250), (343, 58750), (350, 57575), (470, 42875), (490, 41125), (625, 32242), (658, 30625), (686, 29375), (875, 23030), (1175, 17150), (1225, 16450), (1250, 16121), (1645, 12250), (1715, 11750), (1750, 11515), (2303, 8750), (2350, 8575), (2450, 8225), (3290, 6125), (3430, 5875), (4375, 4606)]