19684100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4801}}^1$

素因数の和:4856

約数の個数: 36

約数和(自身を含む): 43765428

約数和(自身を除く): 24081328

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 4801, 9602, 19204, 24005, 48010, 96020, 120025, 196841, 240050, 393682, 480100, 787364, 984205, 1968410, 3936820, 4921025, 9842050, 19684100]

約数ペア:

[(1, 19684100), (2, 9842050), (4, 4921025), (5, 3936820), (10, 1968410), (20, 984205), (25, 787364), (41, 480100), (50, 393682), (82, 240050), (100, 196841), (164, 120025), (205, 96020), (410, 48010), (820, 24005), (1025, 19204), (2050, 9602), (4100, 4801)]