199438480

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{12917}}^1$

素因数の和:13123

約数の個数: 40

約数和(自身を含む): 466133112

約数和(自身を除く): 266694632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 12917, 15440, 25834, 51668, 64585, 103336, 129170, 206672, 258340, 516680, 1033360, 2492981, 4985962, 9971924, 12464905, 19943848, 24929810, 39887696, 49859620, 99719240, 199438480]

約数ペア:

[(1, 199438480), (2, 99719240), (4, 49859620), (5, 39887696), (8, 24929810), (10, 19943848), (16, 12464905), (20, 9971924), (40, 4985962), (80, 2492981), (193, 1033360), (386, 516680), (772, 258340), (965, 206672), (1544, 129170), (1930, 103336), (3088, 64585), (3860, 51668), (7720, 25834), (12917, 15440)]