649152080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{188707}}^1$

素因数の和:188763

約数の個数: 40

約数和(自身を含む): 1544386272

約数和(自身を除く): 895234192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 188707, 377414, 754828, 943535, 1509656, 1887070, 3019312, 3774140, 7548280, 8114401, 15096560, 16228802, 32457604, 40572005, 64915208, 81144010, 129830416, 162288020, 324576040, 649152080]

約数ペア:

[(1, 649152080), (2, 324576040), (4, 162288020), (5, 129830416), (8, 81144010), (10, 64915208), (16, 40572005), (20, 32457604), (40, 16228802), (43, 15096560), (80, 8114401), (86, 7548280), (172, 3774140), (215, 3019312), (344, 1887070), (430, 1509656), (688, 943535), (860, 754828), (1720, 377414), (3440, 188707)]