1640386839

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{3061}}^1$

素因数の和:3248

約数の個数: 48

約数和(自身を含む): 2725522944

約数和(自身を除く): 1085136105

約数列:

[1, 3, 7, 13, 21, 39, 91, 151, 169, 273, 453, 507, 1057, 1183, 1963, 3061, 3171, 3549, 5889, 9183, 13741, 21427, 25519, 39793, 41223, 64281, 76557, 119379, 178633, 278551, 462211, 517309, 535899, 835653, 1386633, 1551927, 3235477, 3621163, 6008743, 9706431, 10863489, 18026229, 42061201, 78113659, 126183603, 234340977, 546795613, 1640386839]

約数ペア:

[(1, 1640386839), (3, 546795613), (7, 234340977), (13, 126183603), (21, 78113659), (39, 42061201), (91, 18026229), (151, 10863489), (169, 9706431), (273, 6008743), (453, 3621163), (507, 3235477), (1057, 1551927), (1183, 1386633), (1963, 835653), (3061, 535899), (3171, 517309), (3549, 462211), (5889, 278551), (9183, 178633), (13741, 119379), (21427, 76557), (25519, 64281), (39793, 41223)]