19768970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3709}}^1$

素因数の和:3770

約数の個数: 32

約数和(自身を含む): 39266640

約数和(自身を除く): 19497670

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3709, 5330, 7418, 18545, 37090, 48217, 96434, 152069, 241085, 304138, 482170, 760345, 1520690, 1976897, 3953794, 9884485, 19768970]

約数ペア:

[(1, 19768970), (2, 9884485), (5, 3953794), (10, 1976897), (13, 1520690), (26, 760345), (41, 482170), (65, 304138), (82, 241085), (130, 152069), (205, 96434), (410, 48217), (533, 37090), (1066, 18545), (2665, 7418), (3709, 5330)]