800208020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{81157}}^1$

素因数の和:81212

約数の個数: 48

約数和(自身を含む): 1840663440

約数和(自身を除く): 1040455420

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 81157, 162314, 324628, 405785, 811570, 1379669, 1623140, 2353553, 2759338, 4707106, 5518676, 6898345, 9414212, 11767765, 13796690, 23535530, 27593380, 40010401, 47071060, 80020802, 160041604, 200052005, 400104010, 800208020]

約数ペア:

[(1, 800208020), (2, 400104010), (4, 200052005), (5, 160041604), (10, 80020802), (17, 47071060), (20, 40010401), (29, 27593380), (34, 23535530), (58, 13796690), (68, 11767765), (85, 9414212), (116, 6898345), (145, 5518676), (170, 4707106), (290, 2759338), (340, 2353553), (493, 1623140), (580, 1379669), (986, 811570), (1972, 405785), (2465, 324628), (4930, 162314), (9860, 81157)]