20053670920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{85103}}^1$

素因数の和:85294

約数の個数: 64

約数和(自身を含む): 46507633920

約数和(自身を除く): 26453963000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 137, 172, 215, 274, 344, 430, 548, 685, 860, 1096, 1370, 1720, 2740, 5480, 5891, 11782, 23564, 29455, 47128, 58910, 85103, 117820, 170206, 235640, 340412, 425515, 680824, 851030, 1702060, 3404120, 3659429, 7318858, 11659111, 14637716, 18297145, 23318222, 29275432, 36594290, 46636444, 58295555, 73188580, 93272888, 116591110, 146377160, 233182220, 466364440, 501341773, 1002683546, 2005367092, 2506708865, 4010734184, 5013417730, 10026835460, 20053670920]

約数ペア:

[(1, 20053670920), (2, 10026835460), (4, 5013417730), (5, 4010734184), (8, 2506708865), (10, 2005367092), (20, 1002683546), (40, 501341773), (43, 466364440), (86, 233182220), (137, 146377160), (172, 116591110), (215, 93272888), (274, 73188580), (344, 58295555), (430, 46636444), (548, 36594290), (685, 29275432), (860, 23318222), (1096, 18297145), (1370, 14637716), (1720, 11659111), (2740, 7318858), (5480, 3659429), (5891, 3404120), (11782, 1702060), (23564, 851030), (29455, 680824), (47128, 425515), (58910, 340412), (85103, 235640), (117820, 170206)]