81754796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 155232000

約数和(自身を除く): 73477204

約数列:

[1, 2, 4, 19, 38, 71, 76, 109, 139, 142, 218, 278, 284, 436, 556, 1349, 2071, 2641, 2698, 4142, 5282, 5396, 7739, 8284, 9869, 10564, 15151, 15478, 19738, 30302, 30956, 39476, 60604, 147041, 187511, 287869, 294082, 375022, 575738, 588164, 750044, 1075721, 1151476, 2151442, 4302884, 20438699, 40877398, 81754796]

約数ペア:

[(1, 81754796), (2, 40877398), (4, 20438699), (19, 4302884), (38, 2151442), (71, 1151476), (76, 1075721), (109, 750044), (139, 588164), (142, 575738), (218, 375022), (278, 294082), (284, 287869), (436, 187511), (556, 147041), (1349, 60604), (2071, 39476), (2641, 30956), (2698, 30302), (4142, 19738), (5282, 15478), (5396, 15151), (7739, 10564), (8284, 9869)]