20174656

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:431

約数の個数: 56

約数和(自身を含む): 43159680

約数和(自身を除く): 22985024

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 47, 64, 76, 94, 152, 188, 304, 353, 376, 608, 706, 752, 893, 1216, 1412, 1504, 1786, 2824, 3008, 3572, 5648, 6707, 7144, 11296, 13414, 14288, 16591, 22592, 26828, 28576, 33182, 53656, 57152, 66364, 107312, 132728, 214624, 265456, 315229, 429248, 530912, 630458, 1061824, 1260916, 2521832, 5043664, 10087328, 20174656]

約数ペア:

[(1, 20174656), (2, 10087328), (4, 5043664), (8, 2521832), (16, 1260916), (19, 1061824), (32, 630458), (38, 530912), (47, 429248), (64, 315229), (76, 265456), (94, 214624), (152, 132728), (188, 107312), (304, 66364), (353, 57152), (376, 53656), (608, 33182), (706, 28576), (752, 26828), (893, 22592), (1216, 16591), (1412, 14288), (1504, 13414), (1786, 11296), (2824, 7144), (3008, 6707), (3572, 5648)]