20315456

素因数分解:

$2^6\times 7^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:487

約数の個数: 56

約数和(自身を含む): 46549056

約数和(自身を除く): 26233600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 137, 224, 274, 331, 448, 548, 662, 959, 1096, 1324, 1918, 2192, 2317, 2648, 3836, 4384, 4634, 5296, 7672, 8768, 9268, 10592, 15344, 18536, 21184, 30688, 37072, 45347, 61376, 74144, 90694, 148288, 181388, 317429, 362776, 634858, 725552, 1269716, 1451104, 2539432, 2902208, 5078864, 10157728, 20315456]

約数ペア:

[(1, 20315456), (2, 10157728), (4, 5078864), (7, 2902208), (8, 2539432), (14, 1451104), (16, 1269716), (28, 725552), (32, 634858), (56, 362776), (64, 317429), (112, 181388), (137, 148288), (224, 90694), (274, 74144), (331, 61376), (448, 45347), (548, 37072), (662, 30688), (959, 21184), (1096, 18536), (1324, 15344), (1918, 10592), (2192, 9268), (2317, 8768), (2648, 7672), (3836, 5296), (4384, 4634)]