2019986275

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 2598483240

約数和(自身を除く): 578496965

約数列:

[1, 5, 25, 43, 89, 215, 445, 491, 1075, 1849, 2225, 2455, 3827, 9245, 12275, 19135, 21113, 43699, 46225, 95675, 105565, 164561, 218495, 527825, 822805, 907859, 1092475, 1879057, 4114025, 4539295, 9395285, 22696475, 46976425, 80799451, 403997255, 2019986275]

約数ペア:

[(1, 2019986275), (5, 403997255), (25, 80799451), (43, 46976425), (89, 22696475), (215, 9395285), (445, 4539295), (491, 4114025), (1075, 1879057), (1849, 1092475), (2225, 907859), (2455, 822805), (3827, 527825), (9245, 218495), (12275, 164561), (19135, 105565), (21113, 95675), (43699, 46225)]