20857536020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{589529}}^1$

素因数の和:589628

約数の個数: 48

約数和(自身を含む): 46054083600

約数和(自身を除く): 25196547580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 580, 610, 1220, 1769, 3538, 7076, 8845, 17690, 35380, 589529, 1179058, 2358116, 2947645, 5895290, 11790580, 17096341, 34192682, 35961269, 68385364, 71922538, 85481705, 143845076, 170963410, 179806345, 341926820, 359612690, 719225380, 1042876801, 2085753602, 4171507204, 5214384005, 10428768010, 20857536020]

約数ペア:

[(1, 20857536020), (2, 10428768010), (4, 5214384005), (5, 4171507204), (10, 2085753602), (20, 1042876801), (29, 719225380), (58, 359612690), (61, 341926820), (116, 179806345), (122, 170963410), (145, 143845076), (244, 85481705), (290, 71922538), (305, 68385364), (580, 35961269), (610, 34192682), (1220, 17096341), (1769, 11790580), (3538, 5895290), (7076, 2947645), (8845, 2358116), (17690, 1179058), (35380, 589529)]