20674304

素因数分解:

$2^8\times 7^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 48074880

約数和(自身を除く): 27400576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 112, 128, 139, 166, 224, 256, 278, 332, 448, 556, 581, 664, 896, 973, 1112, 1162, 1328, 1792, 1946, 2224, 2324, 2656, 3892, 4448, 4648, 5312, 7784, 8896, 9296, 10624, 11537, 15568, 17792, 18592, 21248, 23074, 31136, 35584, 37184, 46148, 62272, 74368, 80759, 92296, 124544, 148736, 161518, 184592, 249088, 323036, 369184, 646072, 738368, 1292144, 1476736, 2584288, 2953472, 5168576, 10337152, 20674304]

約数ペア:

[(1, 20674304), (2, 10337152), (4, 5168576), (7, 2953472), (8, 2584288), (14, 1476736), (16, 1292144), (28, 738368), (32, 646072), (56, 369184), (64, 323036), (83, 249088), (112, 184592), (128, 161518), (139, 148736), (166, 124544), (224, 92296), (256, 80759), (278, 74368), (332, 62272), (448, 46148), (556, 37184), (581, 35584), (664, 31136), (896, 23074), (973, 21248), (1112, 18592), (1162, 17792), (1328, 15568), (1792, 11537), (1946, 10624), (2224, 9296), (2324, 8896), (2656, 7784), (3892, 5312), (4448, 4648)]