18364780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2791}}^1$

素因数の和:2854

約数の個数: 48

約数和(自身を含む): 45029376

約数和(自身を除く): 26664596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 2791, 3290, 5582, 6580, 11164, 13955, 19537, 27910, 39074, 55820, 78148, 97685, 131177, 195370, 262354, 390740, 524708, 655885, 918239, 1311770, 1836478, 2623540, 3672956, 4591195, 9182390, 18364780]

約数ペア:

[(1, 18364780), (2, 9182390), (4, 4591195), (5, 3672956), (7, 2623540), (10, 1836478), (14, 1311770), (20, 918239), (28, 655885), (35, 524708), (47, 390740), (70, 262354), (94, 195370), (140, 131177), (188, 97685), (235, 78148), (329, 55820), (470, 39074), (658, 27910), (940, 19537), (1316, 13955), (1645, 11164), (2791, 6580), (3290, 5582)]