72155320

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7019}}^1$

素因数の和:7287

約数の個数: 32

約数和(自身を含む): 163004400

約数和(自身を除く): 90849080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7019, 10280, 14038, 28076, 35095, 56152, 70190, 140380, 280760, 1803883, 3607766, 7215532, 9019415, 14431064, 18038830, 36077660, 72155320]

約数ペア:

[(1, 72155320), (2, 36077660), (4, 18038830), (5, 14431064), (8, 9019415), (10, 7215532), (20, 3607766), (40, 1803883), (257, 280760), (514, 140380), (1028, 70190), (1285, 56152), (2056, 35095), (2570, 28076), (5140, 14038), (7019, 10280)]