79999964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 159667200

約数和(自身を除く): 79667236

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 89, 124, 178, 341, 356, 659, 682, 979, 1318, 1364, 1958, 2636, 2759, 3916, 5518, 7249, 11036, 14498, 20429, 28996, 30349, 40858, 58651, 60698, 81716, 117302, 121396, 224719, 234604, 449438, 645161, 898876, 1290322, 1818181, 2580644, 3636362, 7272724, 19999991, 39999982, 79999964]

約数ペア:

[(1, 79999964), (2, 39999982), (4, 19999991), (11, 7272724), (22, 3636362), (31, 2580644), (44, 1818181), (62, 1290322), (89, 898876), (124, 645161), (178, 449438), (341, 234604), (356, 224719), (659, 121396), (682, 117302), (979, 81716), (1318, 60698), (1364, 58651), (1958, 40858), (2636, 30349), (2759, 28996), (3916, 20429), (5518, 14498), (7249, 11036)]