28911120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17209}}^1$

素因数の和:17232

約数の個数: 80

約数和(自身を含む): 102433920

約数和(自身を除く): 73522800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 17209, 34418, 51627, 68836, 86045, 103254, 120463, 137672, 172090, 206508, 240926, 258135, 275344, 344180, 361389, 413016, 481852, 516270, 602315, 688360, 722778, 826032, 963704, 1032540, 1204630, 1376720, 1445556, 1806945, 1927408, 2065080, 2409260, 2891112, 3613890, 4130160, 4818520, 5782224, 7227780, 9637040, 14455560, 28911120]

約数ペア:

[(1, 28911120), (2, 14455560), (3, 9637040), (4, 7227780), (5, 5782224), (6, 4818520), (7, 4130160), (8, 3613890), (10, 2891112), (12, 2409260), (14, 2065080), (15, 1927408), (16, 1806945), (20, 1445556), (21, 1376720), (24, 1204630), (28, 1032540), (30, 963704), (35, 826032), (40, 722778), (42, 688360), (48, 602315), (56, 516270), (60, 481852), (70, 413016), (80, 361389), (84, 344180), (105, 275344), (112, 258135), (120, 240926), (140, 206508), (168, 172090), (210, 137672), (240, 120463), (280, 103254), (336, 86045), (420, 68836), (560, 51627), (840, 34418), (1680, 17209)]