220520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 513000

約数和(自身を除く): 292480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 149, 185, 296, 298, 370, 596, 740, 745, 1192, 1480, 1490, 2980, 5513, 5960, 11026, 22052, 27565, 44104, 55130, 110260, 220520]

約数ペア:

[(1, 220520), (2, 110260), (4, 55130), (5, 44104), (8, 27565), (10, 22052), (20, 11026), (37, 5960), (40, 5513), (74, 2980), (148, 1490), (149, 1480), (185, 1192), (296, 745), (298, 740), (370, 596)]