8457520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1$

素因数の和:1573

約数の個数: 40

約数和(自身を含む): 19954080

約数和(自身を除く): 11496560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1489, 2840, 2978, 5680, 5956, 7445, 11912, 14890, 23824, 29780, 59560, 105719, 119120, 211438, 422876, 528595, 845752, 1057190, 1691504, 2114380, 4228760, 8457520]

約数ペア:

[(1, 8457520), (2, 4228760), (4, 2114380), (5, 1691504), (8, 1057190), (10, 845752), (16, 528595), (20, 422876), (40, 211438), (71, 119120), (80, 105719), (142, 59560), (284, 29780), (355, 23824), (568, 14890), (710, 11912), (1136, 7445), (1420, 5956), (1489, 5680), (2840, 2978)]