12644080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2591}}^1$

素因数の和:2665

約数の個数: 40

約数和(自身を含む): 29890944

約数和(自身を除く): 17246864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 2591, 4880, 5182, 10364, 12955, 20728, 25910, 41456, 51820, 103640, 158051, 207280, 316102, 632204, 790255, 1264408, 1580510, 2528816, 3161020, 6322040, 12644080]

約数ペア:

[(1, 12644080), (2, 6322040), (4, 3161020), (5, 2528816), (8, 1580510), (10, 1264408), (16, 790255), (20, 632204), (40, 316102), (61, 207280), (80, 158051), (122, 103640), (244, 51820), (305, 41456), (488, 25910), (610, 20728), (976, 12955), (1220, 10364), (2440, 5182), (2591, 4880)]