7255280

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1121

約数の個数: 40

約数和(自身を含む): 17074800

約数和(自身を除く): 9819520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1019, 1424, 1780, 2038, 3560, 4076, 5095, 7120, 8152, 10190, 16304, 20380, 40760, 81520, 90691, 181382, 362764, 453455, 725528, 906910, 1451056, 1813820, 3627640, 7255280]

約数ペア:

[(1, 7255280), (2, 3627640), (4, 1813820), (5, 1451056), (8, 906910), (10, 725528), (16, 453455), (20, 362764), (40, 181382), (80, 90691), (89, 81520), (178, 40760), (356, 20380), (445, 16304), (712, 10190), (890, 8152), (1019, 7120), (1424, 5095), (1780, 4076), (2038, 3560)]