12681080

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4013}}^1$

素因数の和:4103

約数の個数: 32

約数和(自身を含む): 28900800

約数和(自身を除く): 16219720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4013, 8026, 16052, 20065, 32104, 40130, 80260, 160520, 317027, 634054, 1268108, 1585135, 2536216, 3170270, 6340540, 12681080]

約数ペア:

[(1, 12681080), (2, 6340540), (4, 3170270), (5, 2536216), (8, 1585135), (10, 1268108), (20, 634054), (40, 317027), (79, 160520), (158, 80260), (316, 40130), (395, 32104), (632, 20065), (790, 16052), (1580, 8026), (3160, 4013)]