199989964

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{19991}}^1$

素因数の和:20097

約数の個数: 24

約数和(自身を含む): 364414176

約数和(自身を除く): 164424212

約数列:

[1, 2, 4, 41, 61, 82, 122, 164, 244, 2501, 5002, 10004, 19991, 39982, 79964, 819631, 1219451, 1639262, 2438902, 3278524, 4877804, 49997491, 99994982, 199989964]

約数ペア:

[(1, 199989964), (2, 99994982), (4, 49997491), (41, 4877804), (61, 3278524), (82, 2438902), (122, 1639262), (164, 1219451), (244, 819631), (2501, 79964), (5002, 39982), (10004, 19991)]