200721904

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{18979}}^1$

素因数の和:19648

約数の個数: 20

約数和(自身を含む): 389507560

約数和(自身を除く): 188785656

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 18979, 37958, 75916, 151832, 303664, 12545119, 25090238, 50180476, 100360952, 200721904]

約数ペア:

[(1, 200721904), (2, 100360952), (4, 50180476), (8, 25090238), (16, 12545119), (661, 303664), (1322, 151832), (2644, 75916), (5288, 37958), (10576, 18979)]