20343895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{769}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 29494080

約数和(自身を除く): 9150185

約数列:

[1, 5, 11, 13, 37, 55, 65, 143, 185, 407, 481, 715, 769, 2035, 2405, 3845, 5291, 8459, 9997, 26455, 28453, 42295, 49985, 109967, 142265, 312983, 369889, 549835, 1564915, 1849445, 4068779, 20343895]

約数ペア:

[(1, 20343895), (5, 4068779), (11, 1849445), (13, 1564915), (37, 549835), (55, 369889), (65, 312983), (143, 142265), (185, 109967), (407, 49985), (481, 42295), (715, 28453), (769, 26455), (2035, 9997), (2405, 8459), (3845, 5291)]