128243838

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 274268160

約数和(自身を除く): 146024322

約数列:

[1, 2, 3, 6, 31, 61, 62, 89, 93, 122, 127, 178, 183, 186, 254, 267, 366, 381, 534, 762, 1891, 2759, 3782, 3937, 5429, 5518, 5673, 7747, 7874, 8277, 10858, 11303, 11346, 11811, 15494, 16287, 16554, 22606, 23241, 23622, 32574, 33909, 46482, 67818, 168299, 240157, 336598, 350393, 480314, 504897, 689483, 700786, 720471, 1009794, 1051179, 1378966, 1440942, 2068449, 2102358, 4136898, 21373973, 42747946, 64121919, 128243838]

約数ペア:

[(1, 128243838), (2, 64121919), (3, 42747946), (6, 21373973), (31, 4136898), (61, 2102358), (62, 2068449), (89, 1440942), (93, 1378966), (122, 1051179), (127, 1009794), (178, 720471), (183, 700786), (186, 689483), (254, 504897), (267, 480314), (366, 350393), (381, 336598), (534, 240157), (762, 168299), (1891, 67818), (2759, 46482), (3782, 33909), (3937, 32574), (5429, 23622), (5518, 23241), (5673, 22606), (7747, 16554), (7874, 16287), (8277, 15494), (10858, 11811), (11303, 11346)]