661989344

素因数分解:

$2^5\times {\mathrm{173}}^1\times {\mathrm{197}}^1\times {\mathrm{607}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 1319649408

約数和(自身を除く): 657660064

約数列:

[1, 2, 4, 8, 16, 32, 173, 197, 346, 394, 607, 692, 788, 1214, 1384, 1576, 2428, 2768, 3152, 4856, 5536, 6304, 9712, 19424, 34081, 68162, 105011, 119579, 136324, 210022, 239158, 272648, 420044, 478316, 545296, 840088, 956632, 1090592, 1680176, 1913264, 3360352, 3826528, 20687167, 41374334, 82748668, 165497336, 330994672, 661989344]

約数ペア:

[(1, 661989344), (2, 330994672), (4, 165497336), (8, 82748668), (16, 41374334), (32, 20687167), (173, 3826528), (197, 3360352), (346, 1913264), (394, 1680176), (607, 1090592), (692, 956632), (788, 840088), (1214, 545296), (1384, 478316), (1576, 420044), (2428, 272648), (2768, 239158), (3152, 210022), (4856, 136324), (5536, 119579), (6304, 105011), (9712, 68162), (19424, 34081)]