28025725

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 43552768

約数和(自身を除く): 15527043

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 97, 127, 175, 325, 455, 485, 635, 679, 889, 1261, 1651, 2275, 2425, 3175, 3395, 4445, 6305, 8255, 8827, 11557, 12319, 16975, 22225, 31525, 41275, 44135, 57785, 61595, 86233, 160147, 220675, 288925, 307975, 431165, 800735, 1121029, 2155825, 4003675, 5605145, 28025725]

約数ペア:

[(1, 28025725), (5, 5605145), (7, 4003675), (13, 2155825), (25, 1121029), (35, 800735), (65, 431165), (91, 307975), (97, 288925), (127, 220675), (175, 160147), (325, 86233), (455, 61595), (485, 57785), (635, 44135), (679, 41275), (889, 31525), (1261, 22225), (1651, 16975), (2275, 12319), (2425, 11557), (3175, 8827), (3395, 8255), (4445, 6305)]