20636824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 44432640

約数和(自身を除く): 23795816

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 148, 173, 248, 296, 346, 403, 481, 692, 806, 962, 1147, 1384, 1612, 1924, 2249, 2294, 3224, 3848, 4498, 4588, 5363, 6401, 8996, 9176, 10726, 12802, 14911, 17992, 21452, 25604, 29822, 42904, 51208, 59644, 69719, 83213, 119288, 139438, 166426, 198431, 278876, 332852, 396862, 557752, 665704, 793724, 1587448, 2579603, 5159206, 10318412, 20636824]

約数ペア:

[(1, 20636824), (2, 10318412), (4, 5159206), (8, 2579603), (13, 1587448), (26, 793724), (31, 665704), (37, 557752), (52, 396862), (62, 332852), (74, 278876), (104, 198431), (124, 166426), (148, 139438), (173, 119288), (248, 83213), (296, 69719), (346, 59644), (403, 51208), (481, 42904), (692, 29822), (806, 25604), (962, 21452), (1147, 17992), (1384, 14911), (1612, 12802), (1924, 10726), (2249, 9176), (2294, 8996), (3224, 6401), (3848, 5363), (4498, 4588)]