1640809984

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{291337}}^1$

素因数の和:291366

約数の個数: 40

約数和(自身を含む): 3576465288

約数和(自身を除く): 1935655304

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1408, 2816, 5632, 291337, 582674, 1165348, 2330696, 3204707, 4661392, 6409414, 9322784, 12818828, 18645568, 25637656, 37291136, 51275312, 74582272, 102550624, 149164544, 205101248, 410202496, 820404992, 1640809984]

約数ペア:

[(1, 1640809984), (2, 820404992), (4, 410202496), (8, 205101248), (11, 149164544), (16, 102550624), (22, 74582272), (32, 51275312), (44, 37291136), (64, 25637656), (88, 18645568), (128, 12818828), (176, 9322784), (256, 6409414), (352, 4661392), (512, 3204707), (704, 2330696), (1408, 1165348), (2816, 582674), (5632, 291337)]