128400567440

素因数分解:

$2^4\times 5^1\times {\mathrm{1605007093}}^1$

素因数の和:1605007106

約数の個数: 20

約数和(自身を含む): 298531319484

約数和(自身を除く): 170130752044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1605007093, 3210014186, 6420028372, 8025035465, 12840056744, 16050070930, 25680113488, 32100141860, 64200283720, 128400567440]

約数ペア:

[(1, 128400567440), (2, 64200283720), (4, 32100141860), (5, 25680113488), (8, 16050070930), (10, 12840056744), (16, 8025035465), (20, 6420028372), (40, 3210014186), (80, 1605007093)]