20153350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 43497216

約数和(自身を除く): 23343866

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 811, 994, 1622, 1775, 2485, 3550, 4055, 4970, 5677, 8110, 11354, 12425, 20275, 24850, 28385, 40550, 56770, 57581, 115162, 141925, 283850, 287905, 403067, 575810, 806134, 1439525, 2015335, 2879050, 4030670, 10076675, 20153350]

約数ペア:

[(1, 20153350), (2, 10076675), (5, 4030670), (7, 2879050), (10, 2015335), (14, 1439525), (25, 806134), (35, 575810), (50, 403067), (70, 287905), (71, 283850), (142, 141925), (175, 115162), (350, 57581), (355, 56770), (497, 40550), (710, 28385), (811, 24850), (994, 20275), (1622, 12425), (1775, 11354), (2485, 8110), (3550, 5677), (4055, 4970)]