20878488

素因数分解:

$2^3\times 3^2\times {\mathrm{157}}^1\times {\mathrm{1847}}^1$

素因数の和:2016

約数の個数: 48

約数和(自身を含む): 56936880

約数和(自身を除く): 36058392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 157, 314, 471, 628, 942, 1256, 1413, 1847, 1884, 2826, 3694, 3768, 5541, 5652, 7388, 11082, 11304, 14776, 16623, 22164, 33246, 44328, 66492, 132984, 289979, 579958, 869937, 1159916, 1739874, 2319832, 2609811, 3479748, 5219622, 6959496, 10439244, 20878488]

約数ペア:

[(1, 20878488), (2, 10439244), (3, 6959496), (4, 5219622), (6, 3479748), (8, 2609811), (9, 2319832), (12, 1739874), (18, 1159916), (24, 869937), (36, 579958), (72, 289979), (157, 132984), (314, 66492), (471, 44328), (628, 33246), (942, 22164), (1256, 16623), (1413, 14776), (1847, 11304), (1884, 11082), (2826, 7388), (3694, 5652), (3768, 5541)]