18263245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 12218675

約数列:

[1, 5, 7, 11, 13, 35, 41, 55, 65, 77, 89, 91, 143, 205, 287, 385, 445, 451, 455, 533, 623, 715, 979, 1001, 1157, 1435, 2255, 2665, 3115, 3157, 3649, 3731, 4895, 5005, 5785, 5863, 6853, 8099, 12727, 15785, 18245, 18655, 25543, 29315, 34265, 40139, 40495, 41041, 47437, 63635, 89089, 127715, 200695, 205205, 237185, 280973, 332059, 445445, 521807, 1404865, 1660295, 2609035, 3652649, 18263245]

約数ペア:

[(1, 18263245), (5, 3652649), (7, 2609035), (11, 1660295), (13, 1404865), (35, 521807), (41, 445445), (55, 332059), (65, 280973), (77, 237185), (89, 205205), (91, 200695), (143, 127715), (205, 89089), (287, 63635), (385, 47437), (445, 41041), (451, 40495), (455, 40139), (533, 34265), (623, 29315), (715, 25543), (979, 18655), (1001, 18245), (1157, 15785), (1435, 12727), (2255, 8099), (2665, 6853), (3115, 5863), (3157, 5785), (3649, 5005), (3731, 4895)]