1311345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 2725632

約数和(自身を除く): 1414287

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 181, 207, 315, 345, 483, 543, 805, 905, 1035, 1267, 1449, 1629, 2415, 2715, 3801, 4163, 6335, 7245, 8145, 11403, 12489, 19005, 20815, 29141, 37467, 57015, 62445, 87423, 145705, 187335, 262269, 437115, 1311345]

約数ペア:

[(1, 1311345), (3, 437115), (5, 262269), (7, 187335), (9, 145705), (15, 87423), (21, 62445), (23, 57015), (35, 37467), (45, 29141), (63, 20815), (69, 19005), (105, 12489), (115, 11403), (161, 8145), (181, 7245), (207, 6335), (315, 4163), (345, 3801), (483, 2715), (543, 2415), (805, 1629), (905, 1449), (1035, 1267)]