19789220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 45638208

約数和(自身を除く): 25848988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 293, 307, 586, 614, 1172, 1228, 1465, 1535, 2930, 3070, 3223, 3377, 5860, 6140, 6446, 6754, 12892, 13508, 16115, 16885, 32230, 33770, 64460, 67540, 89951, 179902, 359804, 449755, 899510, 989461, 1799020, 1978922, 3957844, 4947305, 9894610, 19789220]

約数ペア:

[(1, 19789220), (2, 9894610), (4, 4947305), (5, 3957844), (10, 1978922), (11, 1799020), (20, 989461), (22, 899510), (44, 449755), (55, 359804), (110, 179902), (220, 89951), (293, 67540), (307, 64460), (586, 33770), (614, 32230), (1172, 16885), (1228, 16115), (1465, 13508), (1535, 12892), (2930, 6754), (3070, 6446), (3223, 6140), (3377, 5860)]