20389812

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2417}}^1$

素因数の和:2480

約数の個数: 48

約数和(自身を含む): 51455040

約数和(自身を除く): 31065228

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2417, 2812, 4218, 4834, 7251, 8436, 9668, 14502, 29004, 45923, 89429, 91846, 137769, 178858, 183692, 268287, 275538, 357716, 536574, 551076, 1073148, 1699151, 3398302, 5097453, 6796604, 10194906, 20389812]

約数ペア:

[(1, 20389812), (2, 10194906), (3, 6796604), (4, 5097453), (6, 3398302), (12, 1699151), (19, 1073148), (37, 551076), (38, 536574), (57, 357716), (74, 275538), (76, 268287), (111, 183692), (114, 178858), (148, 137769), (222, 91846), (228, 89429), (444, 45923), (703, 29004), (1406, 14502), (2109, 9668), (2417, 8436), (2812, 7251), (4218, 4834)]