20502328

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 28123592

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 83, 88, 154, 166, 308, 332, 401, 581, 616, 664, 802, 913, 1162, 1604, 1826, 2324, 2807, 3208, 3652, 4411, 4648, 5614, 6391, 7304, 8822, 11228, 12782, 17644, 22456, 25564, 30877, 33283, 35288, 51128, 61754, 66566, 123508, 133132, 232981, 247016, 266264, 366113, 465962, 732226, 931924, 1464452, 1863848, 2562791, 2928904, 5125582, 10251164, 20502328]

約数ペア:

[(1, 20502328), (2, 10251164), (4, 5125582), (7, 2928904), (8, 2562791), (11, 1863848), (14, 1464452), (22, 931924), (28, 732226), (44, 465962), (56, 366113), (77, 266264), (83, 247016), (88, 232981), (154, 133132), (166, 123508), (308, 66566), (332, 61754), (401, 51128), (581, 35288), (616, 33283), (664, 30877), (802, 25564), (913, 22456), (1162, 17644), (1604, 12782), (1826, 11228), (2324, 8822), (2807, 7304), (3208, 6391), (3652, 5614), (4411, 4648)]