28261040

素因数分解:

$2^4\times 5^1\times {\mathrm{353263}}^1$

素因数の和:353276

約数の個数: 20

約数和(自身を含む): 65707104

約数和(自身を除く): 37446064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353263, 706526, 1413052, 1766315, 2826104, 3532630, 5652208, 7065260, 14130520, 28261040]

約数ペア:

[(1, 28261040), (2, 14130520), (4, 7065260), (5, 5652208), (8, 3532630), (10, 2826104), (16, 1766315), (20, 1413052), (40, 706526), (80, 353263)]