66787890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171251}}^1$

素因数の和:171274

約数の個数: 32

約数和(自身を含む): 172622016

約数和(自身を除く): 105834126

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 171251, 342502, 513753, 856255, 1027506, 1712510, 2226263, 2568765, 4452526, 5137530, 6678789, 11131315, 13357578, 22262630, 33393945, 66787890]

約数ペア:

[(1, 66787890), (2, 33393945), (3, 22262630), (5, 13357578), (6, 11131315), (10, 6678789), (13, 5137530), (15, 4452526), (26, 2568765), (30, 2226263), (39, 1712510), (65, 1027506), (78, 856255), (130, 513753), (195, 342502), (390, 171251)]