15968920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36293}}^1$

素因数の和:36315

約数の個数: 32

約数和(自身を含む): 39197520

約数和(自身を除く): 23228600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 36293, 72586, 145172, 181465, 290344, 362930, 399223, 725860, 798446, 1451720, 1596892, 1996115, 3193784, 3992230, 7984460, 15968920]

約数ペア:

[(1, 15968920), (2, 7984460), (4, 3992230), (5, 3193784), (8, 1996115), (10, 1596892), (11, 1451720), (20, 798446), (22, 725860), (40, 399223), (44, 362930), (55, 290344), (88, 181465), (110, 145172), (220, 72586), (440, 36293)]