1658240

素因数分解:

$2^7\times 5^1\times {\mathrm{2591}}^1$

素因数の和:2610

約数の個数: 32

約数和(自身を含む): 3965760

約数和(自身を除く): 2307520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2591, 5182, 10364, 12955, 20728, 25910, 41456, 51820, 82912, 103640, 165824, 207280, 331648, 414560, 829120, 1658240]

約数ペア:

[(1, 1658240), (2, 829120), (4, 414560), (5, 331648), (8, 207280), (10, 165824), (16, 103640), (20, 82912), (32, 51820), (40, 41456), (64, 25910), (80, 20728), (128, 12955), (160, 10364), (320, 5182), (640, 2591)]