20461672

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{563}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 48729600

約数和(自身を除く): 28267928

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 59, 77, 88, 118, 154, 236, 308, 413, 472, 563, 616, 649, 826, 1126, 1298, 1652, 2252, 2596, 3304, 3941, 4504, 4543, 5192, 6193, 7882, 9086, 12386, 15764, 18172, 24772, 31528, 33217, 36344, 43351, 49544, 66434, 86702, 132868, 173404, 232519, 265736, 346808, 365387, 465038, 730774, 930076, 1461548, 1860152, 2557709, 2923096, 5115418, 10230836, 20461672]

約数ペア:

[(1, 20461672), (2, 10230836), (4, 5115418), (7, 2923096), (8, 2557709), (11, 1860152), (14, 1461548), (22, 930076), (28, 730774), (44, 465038), (56, 365387), (59, 346808), (77, 265736), (88, 232519), (118, 173404), (154, 132868), (236, 86702), (308, 66434), (413, 49544), (472, 43351), (563, 36344), (616, 33217), (649, 31528), (826, 24772), (1126, 18172), (1298, 15764), (1652, 12386), (2252, 9086), (2596, 7882), (3304, 6193), (3941, 5192), (4504, 4543)]