16521660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{349}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 33928740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 349, 526, 698, 789, 1047, 1052, 1315, 1396, 1578, 1745, 2094, 2367, 2630, 3141, 3156, 3490, 3945, 4188, 4734, 5235, 5260, 6282, 6980, 7890, 9468, 10470, 11835, 12564, 15705, 15780, 20940, 23670, 31410, 47340, 62820, 91787, 183574, 275361, 367148, 458935, 550722, 826083, 917870, 1101444, 1376805, 1652166, 1835740, 2753610, 3304332, 4130415, 5507220, 8260830, 16521660]

約数ペア:

[(1, 16521660), (2, 8260830), (3, 5507220), (4, 4130415), (5, 3304332), (6, 2753610), (9, 1835740), (10, 1652166), (12, 1376805), (15, 1101444), (18, 917870), (20, 826083), (30, 550722), (36, 458935), (45, 367148), (60, 275361), (90, 183574), (180, 91787), (263, 62820), (349, 47340), (526, 31410), (698, 23670), (789, 20940), (1047, 15780), (1052, 15705), (1315, 12564), (1396, 11835), (1578, 10470), (1745, 9468), (2094, 7890), (2367, 6980), (2630, 6282), (3141, 5260), (3156, 5235), (3490, 4734), (3945, 4188)]