77994440

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{18223}}^1$

素因数の和:18341

約数の個数: 32

約数和(自身を含む): 177137280

約数和(自身を除く): 99142840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 18223, 36446, 72892, 91115, 145784, 182230, 364460, 728920, 1949861, 3899722, 7799444, 9749305, 15598888, 19498610, 38997220, 77994440]

約数ペア:

[(1, 77994440), (2, 38997220), (4, 19498610), (5, 15598888), (8, 9749305), (10, 7799444), (20, 3899722), (40, 1949861), (107, 728920), (214, 364460), (428, 182230), (535, 145784), (856, 91115), (1070, 72892), (2140, 36446), (4280, 18223)]