20720976

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{137}}^2$

素因数の和:308

約数の個数: 60

約数和(自身を含む): 56267232

約数和(自身を除く): 35546256

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 137, 138, 184, 274, 276, 368, 411, 548, 552, 822, 1096, 1104, 1644, 2192, 3151, 3288, 6302, 6576, 9453, 12604, 18769, 18906, 25208, 37538, 37812, 50416, 56307, 75076, 75624, 112614, 150152, 151248, 225228, 300304, 431687, 450456, 863374, 900912, 1295061, 1726748, 2590122, 3453496, 5180244, 6906992, 10360488, 20720976]

約数ペア:

[(1, 20720976), (2, 10360488), (3, 6906992), (4, 5180244), (6, 3453496), (8, 2590122), (12, 1726748), (16, 1295061), (23, 900912), (24, 863374), (46, 450456), (48, 431687), (69, 300304), (92, 225228), (137, 151248), (138, 150152), (184, 112614), (274, 75624), (276, 75076), (368, 56307), (411, 50416), (548, 37812), (552, 37538), (822, 25208), (1096, 18906), (1104, 18769), (1644, 12604), (2192, 9453), (3151, 6576), (3288, 6302)]