28166025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22091}}^1$

素因数の和:22121

約数の個数: 24

約数和(自身を含む): 49309344

約数和(自身を除く): 21143319

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22091, 66273, 110455, 331365, 375547, 552275, 1126641, 1656825, 1877735, 5633205, 9388675, 28166025]

約数ペア:

[(1, 28166025), (3, 9388675), (5, 5633205), (15, 1877735), (17, 1656825), (25, 1126641), (51, 552275), (75, 375547), (85, 331365), (255, 110455), (425, 66273), (1275, 22091)]