18859951825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{577}}^1$

素因数の和:875

約数の個数: 96

約数和(自身を含む): 28320187392

約数和(自身を除く): 9460235567

約数列:

[1, 5, 11, 13, 25, 41, 55, 65, 143, 205, 223, 275, 325, 451, 533, 577, 715, 1025, 1115, 2255, 2453, 2665, 2885, 2899, 3575, 5575, 5863, 6347, 7501, 9143, 11275, 12265, 13325, 14425, 14495, 23657, 29315, 31735, 31889, 37505, 45715, 61325, 72475, 82511, 100573, 118285, 118859, 128671, 146575, 158675, 159445, 187525, 228575, 260227, 307541, 412555, 502865, 591425, 594295, 643355, 797225, 1301135, 1307449, 1415381, 1537705, 1672723, 2062775, 2514325, 2971475, 3216775, 3382951, 5275511, 6505675, 6537245, 7076905, 7688525, 8363615, 16914755, 18399953, 26377555, 32686225, 35384525, 41818075, 58030621, 68581643, 84573775, 91999765, 131887775, 290153105, 342908215, 459998825, 754398073, 1450765525, 1714541075, 3771990365, 18859951825]

約数ペア:

[(1, 18859951825), (5, 3771990365), (11, 1714541075), (13, 1450765525), (25, 754398073), (41, 459998825), (55, 342908215), (65, 290153105), (143, 131887775), (205, 91999765), (223, 84573775), (275, 68581643), (325, 58030621), (451, 41818075), (533, 35384525), (577, 32686225), (715, 26377555), (1025, 18399953), (1115, 16914755), (2255, 8363615), (2453, 7688525), (2665, 7076905), (2885, 6537245), (2899, 6505675), (3575, 5275511), (5575, 3382951), (5863, 3216775), (6347, 2971475), (7501, 2514325), (9143, 2062775), (11275, 1672723), (12265, 1537705), (13325, 1415381), (14425, 1307449), (14495, 1301135), (23657, 797225), (29315, 643355), (31735, 594295), (31889, 591425), (37505, 502865), (45715, 412555), (61325, 307541), (72475, 260227), (82511, 228575), (100573, 187525), (118285, 159445), (118859, 158675), (128671, 146575)]