204393080

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{19429}}^1$

素因数の和:19703

約数の個数: 32

約数和(自身を含む): 461656800

約数和(自身を除く): 257263720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 19429, 38858, 77716, 97145, 155432, 194290, 388580, 777160, 5109827, 10219654, 20439308, 25549135, 40878616, 51098270, 102196540, 204393080]

約数ペア:

[(1, 204393080), (2, 102196540), (4, 51098270), (5, 40878616), (8, 25549135), (10, 20439308), (20, 10219654), (40, 5109827), (263, 777160), (526, 388580), (1052, 194290), (1315, 155432), (2104, 97145), (2630, 77716), (5260, 38858), (10520, 19429)]