1289553655

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2672

約数の個数: 48

約数和(自身を含む): 1821450240

約数和(自身を除く): 531896585

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 169, 247, 403, 589, 845, 1235, 2015, 2591, 2945, 3211, 5239, 7657, 12955, 16055, 26195, 33683, 38285, 49229, 80321, 99541, 168415, 246145, 401605, 437879, 497705, 639977, 1044173, 1526099, 2189395, 3199885, 5220865, 7630495, 8319701, 13574249, 19839287, 41598505, 67871245, 99196435, 257910731, 1289553655]

約数ペア:

[(1, 1289553655), (5, 257910731), (13, 99196435), (19, 67871245), (31, 41598505), (65, 19839287), (95, 13574249), (155, 8319701), (169, 7630495), (247, 5220865), (403, 3199885), (589, 2189395), (845, 1526099), (1235, 1044173), (2015, 639977), (2591, 497705), (2945, 437879), (3211, 401605), (5239, 246145), (7657, 168415), (12955, 99541), (16055, 80321), (26195, 49229), (33683, 38285)]