18973630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 37683360

約数和(自身を除く): 18709730

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 109, 130, 169, 206, 218, 338, 515, 545, 845, 1030, 1090, 1339, 1417, 1690, 2678, 2834, 6695, 7085, 11227, 13390, 14170, 17407, 18421, 22454, 34814, 36842, 56135, 87035, 92105, 112270, 145951, 174070, 184210, 291902, 729755, 1459510, 1897363, 3794726, 9486815, 18973630]

約数ペア:

[(1, 18973630), (2, 9486815), (5, 3794726), (10, 1897363), (13, 1459510), (26, 729755), (65, 291902), (103, 184210), (109, 174070), (130, 145951), (169, 112270), (206, 92105), (218, 87035), (338, 56135), (515, 36842), (545, 34814), (845, 22454), (1030, 18421), (1090, 17407), (1339, 14170), (1417, 13390), (1690, 11227), (2678, 7085), (2834, 6695)]