128920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 317520

約数和(自身を除く): 188600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 293, 440, 586, 1172, 1465, 2344, 2930, 3223, 5860, 6446, 11720, 12892, 16115, 25784, 32230, 64460, 128920]

約数ペア:

[(1, 128920), (2, 64460), (4, 32230), (5, 25784), (8, 16115), (10, 12892), (11, 11720), (20, 6446), (22, 5860), (40, 3223), (44, 2930), (55, 2344), (88, 1465), (110, 1172), (220, 586), (293, 440)]