28095980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127709}}^1$

素因数の和:127729

約数の個数: 24

約数和(自身を含む): 64365840

約数和(自身を除く): 36269860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127709, 255418, 510836, 638545, 1277090, 1404799, 2554180, 2809598, 5619196, 7023995, 14047990, 28095980]

約数ペア:

[(1, 28095980), (2, 14047990), (4, 7023995), (5, 5619196), (10, 2809598), (11, 2554180), (20, 1404799), (22, 1277090), (44, 638545), (55, 510836), (110, 255418), (220, 127709)]