20366947760

素因数分解:

$2^4\times 5^1\times {\mathrm{8087}}^1\times {\mathrm{31481}}^1$

素因数の和:39581

約数の個数: 40

約数和(自身を含む): 47360513376

約数和(自身を除く): 26993565616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8087, 16174, 31481, 32348, 40435, 62962, 64696, 80870, 125924, 129392, 157405, 161740, 251848, 314810, 323480, 503696, 629620, 646960, 1259240, 2518480, 254586847, 509173694, 1018347388, 1272934235, 2036694776, 2545868470, 4073389552, 5091736940, 10183473880, 20366947760]

約数ペア:

[(1, 20366947760), (2, 10183473880), (4, 5091736940), (5, 4073389552), (8, 2545868470), (10, 2036694776), (16, 1272934235), (20, 1018347388), (40, 509173694), (80, 254586847), (8087, 2518480), (16174, 1259240), (31481, 646960), (32348, 629620), (40435, 503696), (62962, 323480), (64696, 314810), (80870, 251848), (125924, 161740), (129392, 157405)]