12742840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28961}}^1$

素因数の和:28983

約数の個数: 32

約数和(自身を含む): 31278960

約数和(自身を除く): 18536120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28961, 57922, 115844, 144805, 231688, 289610, 318571, 579220, 637142, 1158440, 1274284, 1592855, 2548568, 3185710, 6371420, 12742840]

約数ペア:

[(1, 12742840), (2, 6371420), (4, 3185710), (5, 2548568), (8, 1592855), (10, 1274284), (11, 1158440), (20, 637142), (22, 579220), (40, 318571), (44, 289610), (55, 231688), (88, 144805), (110, 115844), (220, 57922), (440, 28961)]