8737280

素因数分解:

$2^9\times 5^1\times {\mathrm{3413}}^1$

素因数の和:3436

約数の個数: 40

約数和(自身を含む): 20955132

約数和(自身を除く): 12217852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 3413, 6826, 13652, 17065, 27304, 34130, 54608, 68260, 109216, 136520, 218432, 273040, 436864, 546080, 873728, 1092160, 1747456, 2184320, 4368640, 8737280]

約数ペア:

[(1, 8737280), (2, 4368640), (4, 2184320), (5, 1747456), (8, 1092160), (10, 873728), (16, 546080), (20, 436864), (32, 273040), (40, 218432), (64, 136520), (80, 109216), (128, 68260), (160, 54608), (256, 34130), (320, 27304), (512, 17065), (640, 13652), (1280, 6826), (2560, 3413)]