28855554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1289}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 72817920

約数和(自身を除く): 43962366

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 861, 1066, 1289, 1599, 1722, 2578, 3198, 3731, 3867, 7462, 7734, 9023, 11193, 16757, 18046, 22386, 27069, 33514, 50271, 52849, 54138, 100542, 105698, 117299, 158547, 234598, 317094, 351897, 369943, 687037, 703794, 739886, 1109829, 1374074, 2061111, 2219658, 4122222, 4809259, 9618518, 14427777, 28855554]

約数ペア:

[(1, 28855554), (2, 14427777), (3, 9618518), (6, 4809259), (7, 4122222), (13, 2219658), (14, 2061111), (21, 1374074), (26, 1109829), (39, 739886), (41, 703794), (42, 687037), (78, 369943), (82, 351897), (91, 317094), (123, 234598), (182, 158547), (246, 117299), (273, 105698), (287, 100542), (533, 54138), (546, 52849), (574, 50271), (861, 33514), (1066, 27069), (1289, 22386), (1599, 18046), (1722, 16757), (2578, 11193), (3198, 9023), (3731, 7734), (3867, 7462)]