31647320

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2267}}^1$

素因数の和:2627

約数の個数: 32

約数和(自身を含む): 71442000

約数和(自身を除く): 39794680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2267, 2792, 3490, 4534, 6980, 9068, 11335, 13960, 18136, 22670, 45340, 90680, 791183, 1582366, 3164732, 3955915, 6329464, 7911830, 15823660, 31647320]

約数ペア:

[(1, 31647320), (2, 15823660), (4, 7911830), (5, 6329464), (8, 3955915), (10, 3164732), (20, 1582366), (40, 791183), (349, 90680), (698, 45340), (1396, 22670), (1745, 18136), (2267, 13960), (2792, 11335), (3490, 9068), (4534, 6980)]