19804928

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 46529616

約数和(自身を除く): 26724688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 104, 128, 143, 176, 208, 256, 286, 352, 416, 541, 572, 704, 832, 1082, 1144, 1408, 1664, 2164, 2288, 2816, 3328, 4328, 4576, 5951, 7033, 8656, 9152, 11902, 14066, 17312, 18304, 23804, 28132, 34624, 36608, 47608, 56264, 69248, 77363, 95216, 112528, 138496, 154726, 190432, 225056, 309452, 380864, 450112, 618904, 761728, 900224, 1237808, 1523456, 1800448, 2475616, 4951232, 9902464, 19804928]

約数ペア:

[(1, 19804928), (2, 9902464), (4, 4951232), (8, 2475616), (11, 1800448), (13, 1523456), (16, 1237808), (22, 900224), (26, 761728), (32, 618904), (44, 450112), (52, 380864), (64, 309452), (88, 225056), (104, 190432), (128, 154726), (143, 138496), (176, 112528), (208, 95216), (256, 77363), (286, 69248), (352, 56264), (416, 47608), (541, 36608), (572, 34624), (704, 28132), (832, 23804), (1082, 18304), (1144, 17312), (1408, 14066), (1664, 11902), (2164, 9152), (2288, 8656), (2816, 7033), (3328, 5951), (4328, 4576)]