28151320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41399}}^1$

素因数の和:41427

約数の個数: 32

約数和(自身を含む): 67068000

約数和(自身を除く): 38916680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41399, 82798, 165596, 206995, 331192, 413990, 703783, 827980, 1407566, 1655960, 2815132, 3518915, 5630264, 7037830, 14075660, 28151320]

約数ペア:

[(1, 28151320), (2, 14075660), (4, 7037830), (5, 5630264), (8, 3518915), (10, 2815132), (17, 1655960), (20, 1407566), (34, 827980), (40, 703783), (68, 413990), (85, 331192), (136, 206995), (170, 165596), (340, 82798), (680, 41399)]