51380415

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 91728000

約数和(自身を除く): 40347585

約数列:

[1, 3, 5, 9, 15, 45, 79, 97, 149, 237, 291, 395, 447, 485, 711, 745, 873, 1185, 1341, 1455, 2235, 3555, 4365, 6705, 7663, 11771, 14453, 22989, 35313, 38315, 43359, 58855, 68967, 72265, 105939, 114945, 130077, 176565, 216795, 344835, 529695, 650385, 1141787, 3425361, 5708935, 10276083, 17126805, 51380415]

約数ペア:

[(1, 51380415), (3, 17126805), (5, 10276083), (9, 5708935), (15, 3425361), (45, 1141787), (79, 650385), (97, 529695), (149, 344835), (237, 216795), (291, 176565), (395, 130077), (447, 114945), (485, 105939), (711, 72265), (745, 68967), (873, 58855), (1185, 43359), (1341, 38315), (1455, 35313), (2235, 22989), (3555, 14453), (4365, 11771), (6705, 7663)]