15916980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{853}}^1$

素因数の和:1176

約数の個数: 48

約数和(自身を含む): 44763264

約数和(自身を除く): 28846284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 853, 933, 1244, 1555, 1706, 1866, 2559, 3110, 3412, 3732, 4265, 4665, 5118, 6220, 8530, 9330, 10236, 12795, 17060, 18660, 25590, 51180, 265283, 530566, 795849, 1061132, 1326415, 1591698, 2652830, 3183396, 3979245, 5305660, 7958490, 15916980]

約数ペア:

[(1, 15916980), (2, 7958490), (3, 5305660), (4, 3979245), (5, 3183396), (6, 2652830), (10, 1591698), (12, 1326415), (15, 1061132), (20, 795849), (30, 530566), (60, 265283), (311, 51180), (622, 25590), (853, 18660), (933, 17060), (1244, 12795), (1555, 10236), (1706, 9330), (1866, 8530), (2559, 6220), (3110, 5118), (3412, 4665), (3732, 4265)]