20536700900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{64969}}^1$

素因数の和:65121

約数の個数: 72

約数和(自身を含む): 46525017000

約数和(自身を除く): 25988316100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 109, 116, 145, 218, 290, 436, 545, 580, 725, 1090, 1450, 2180, 2725, 2900, 3161, 5450, 6322, 10900, 12644, 15805, 31610, 63220, 64969, 79025, 129938, 158050, 259876, 316100, 324845, 649690, 1299380, 1624225, 1884101, 3248450, 3768202, 6496900, 7081621, 7536404, 9420505, 14163242, 18841010, 28326484, 35408105, 37682020, 47102525, 70816210, 94205050, 141632420, 177040525, 188410100, 205367009, 354081050, 410734018, 708162100, 821468036, 1026835045, 2053670090, 4107340180, 5134175225, 10268350450, 20536700900]

約数ペア:

[(1, 20536700900), (2, 10268350450), (4, 5134175225), (5, 4107340180), (10, 2053670090), (20, 1026835045), (25, 821468036), (29, 708162100), (50, 410734018), (58, 354081050), (100, 205367009), (109, 188410100), (116, 177040525), (145, 141632420), (218, 94205050), (290, 70816210), (436, 47102525), (545, 37682020), (580, 35408105), (725, 28326484), (1090, 18841010), (1450, 14163242), (2180, 9420505), (2725, 7536404), (2900, 7081621), (3161, 6496900), (5450, 3768202), (6322, 3248450), (10900, 1884101), (12644, 1624225), (15805, 1299380), (31610, 649690), (63220, 324845), (64969, 316100), (79025, 259876), (129938, 158050)]