64491999

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 110315520

約数和(自身を除く): 45823521

約数列:

[1, 3, 11, 13, 17, 33, 37, 39, 51, 111, 143, 187, 221, 239, 407, 429, 481, 561, 629, 663, 717, 1221, 1443, 1887, 2431, 2629, 3107, 4063, 5291, 6919, 7293, 7887, 8177, 8843, 9321, 12189, 15873, 20757, 24531, 26529, 34177, 44693, 52819, 89947, 97273, 102531, 114959, 134079, 150331, 158457, 269841, 291819, 344877, 450993, 581009, 1264549, 1653641, 1743027, 1954303, 3793647, 4960923, 5862909, 21497333, 64491999]

約数ペア:

[(1, 64491999), (3, 21497333), (11, 5862909), (13, 4960923), (17, 3793647), (33, 1954303), (37, 1743027), (39, 1653641), (51, 1264549), (111, 581009), (143, 450993), (187, 344877), (221, 291819), (239, 269841), (407, 158457), (429, 150331), (481, 134079), (561, 114959), (629, 102531), (663, 97273), (717, 89947), (1221, 52819), (1443, 44693), (1887, 34177), (2431, 26529), (2629, 24531), (3107, 20757), (4063, 15873), (5291, 12189), (6919, 9321), (7293, 8843), (7887, 8177)]