61731320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220469}}^1$

素因数の和:220487

約数の個数: 32

約数和(自身を含む): 158738400

約数和(自身を除く): 97007080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220469, 440938, 881876, 1102345, 1543283, 1763752, 2204690, 3086566, 4409380, 6173132, 7716415, 8818760, 12346264, 15432830, 30865660, 61731320]

約数ペア:

[(1, 61731320), (2, 30865660), (4, 15432830), (5, 12346264), (7, 8818760), (8, 7716415), (10, 6173132), (14, 4409380), (20, 3086566), (28, 2204690), (35, 1763752), (40, 1543283), (56, 1102345), (70, 881876), (140, 440938), (280, 220469)]