221425925

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^2\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 319542048

約数和(自身を除く): 98116123

約数列:

[1, 5, 7, 25, 35, 71, 175, 251, 355, 497, 1255, 1757, 1775, 2485, 5041, 6275, 8785, 12425, 17821, 25205, 35287, 43925, 89105, 124747, 126025, 176435, 445525, 623735, 882175, 1265291, 3118675, 6326455, 8857037, 31632275, 44285185, 221425925]

約数ペア:

[(1, 221425925), (5, 44285185), (7, 31632275), (25, 8857037), (35, 6326455), (71, 3118675), (175, 1265291), (251, 882175), (355, 623735), (497, 445525), (1255, 176435), (1757, 126025), (1775, 124747), (2485, 89105), (5041, 43925), (6275, 35287), (8785, 25205), (12425, 17821)]