2153804575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 2928180640

約数和(自身を除く): 774376065

約数列:

[1, 5, 13, 25, 65, 109, 163, 325, 373, 545, 815, 1417, 1865, 2119, 2725, 4075, 4849, 7085, 9325, 10595, 17767, 24245, 35425, 40657, 52975, 60799, 88835, 121225, 203285, 230971, 303995, 444175, 528541, 790387, 1016425, 1154855, 1519975, 2642705, 3951935, 5774275, 6627091, 13213525, 19759675, 33135455, 86152183, 165677275, 430760915, 2153804575]

約数ペア:

[(1, 2153804575), (5, 430760915), (13, 165677275), (25, 86152183), (65, 33135455), (109, 19759675), (163, 13213525), (325, 6627091), (373, 5774275), (545, 3951935), (815, 2642705), (1417, 1519975), (1865, 1154855), (2119, 1016425), (2725, 790387), (4075, 528541), (4849, 444175), (7085, 303995), (9325, 230971), (10595, 203285), (17767, 121225), (24245, 88835), (35425, 60799), (40657, 52975)]