664807568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{20063}}^1$

素因数の和:20199

約数の個数: 40

約数和(自身を含む): 1368364800

約数和(自身を除く): 703557232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 872, 1744, 2071, 4142, 8284, 16568, 20063, 33136, 40126, 80252, 160504, 321008, 381197, 762394, 1524788, 2186867, 3049576, 4373734, 6099152, 8747468, 17494936, 34989872, 41550473, 83100946, 166201892, 332403784, 664807568]

約数ペア:

[(1, 664807568), (2, 332403784), (4, 166201892), (8, 83100946), (16, 41550473), (19, 34989872), (38, 17494936), (76, 8747468), (109, 6099152), (152, 4373734), (218, 3049576), (304, 2186867), (436, 1524788), (872, 762394), (1744, 381197), (2071, 321008), (4142, 160504), (8284, 80252), (16568, 40126), (20063, 33136)]