20440428

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2423}}^1$

素因数の和:2486

約数の個数: 48

約数和(自身を含む): 51582720

約数和(自身を除く): 31142292

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2423, 2812, 4218, 4846, 7269, 8436, 9692, 14538, 29076, 46037, 89651, 92074, 138111, 179302, 184148, 268953, 276222, 358604, 537906, 552444, 1075812, 1703369, 3406738, 5110107, 6813476, 10220214, 20440428]

約数ペア:

[(1, 20440428), (2, 10220214), (3, 6813476), (4, 5110107), (6, 3406738), (12, 1703369), (19, 1075812), (37, 552444), (38, 537906), (57, 358604), (74, 276222), (76, 268953), (111, 184148), (114, 179302), (148, 138111), (222, 92074), (228, 89651), (444, 46037), (703, 29076), (1406, 14538), (2109, 9692), (2423, 8436), (2812, 7269), (4218, 4846)]