20440741945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{499957}}^1$

素因数の和:500029

約数の個数: 32

約数和(自身を含む): 28725586848

約数和(自身を除く): 8284844903

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 221, 481, 629, 1105, 2405, 3145, 8177, 40885, 499957, 2499785, 6499441, 8499269, 18498409, 32497205, 42496345, 92492045, 110490497, 240479317, 314472953, 552452485, 1202396585, 1572364765, 4088148389, 20440741945]

約数ペア:

[(1, 20440741945), (5, 4088148389), (13, 1572364765), (17, 1202396585), (37, 552452485), (65, 314472953), (85, 240479317), (185, 110490497), (221, 92492045), (481, 42496345), (629, 32497205), (1105, 18498409), (2405, 8499269), (3145, 6499441), (8177, 2499785), (40885, 499957)]