30891320

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4919}}^1$

素因数の和:5087

約数の個数: 32

約数和(自身を含む): 69962400

約数和(自身を除く): 39071080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4919, 6280, 9838, 19676, 24595, 39352, 49190, 98380, 196760, 772283, 1544566, 3089132, 3861415, 6178264, 7722830, 15445660, 30891320]

約数ペア:

[(1, 30891320), (2, 15445660), (4, 7722830), (5, 6178264), (8, 3861415), (10, 3089132), (20, 1544566), (40, 772283), (157, 196760), (314, 98380), (628, 49190), (785, 39352), (1256, 24595), (1570, 19676), (3140, 9838), (4919, 6280)]