256687574

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 470679552

約数和(自身を除く): 213991978

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 127, 143, 191, 254, 286, 382, 407, 481, 814, 962, 1397, 1651, 2101, 2483, 2794, 3302, 4202, 4699, 4966, 5291, 7067, 9398, 10582, 14134, 18161, 24257, 27313, 36322, 48514, 51689, 54626, 61087, 77737, 91871, 103378, 122174, 155474, 183742, 266827, 315341, 533654, 630682, 671957, 897509, 1010581, 1343914, 1795018, 2021162, 3468751, 6937502, 9872599, 11667617, 19745198, 23335234, 128343787, 256687574]

約数ペア:

[(1, 256687574), (2, 128343787), (11, 23335234), (13, 19745198), (22, 11667617), (26, 9872599), (37, 6937502), (74, 3468751), (127, 2021162), (143, 1795018), (191, 1343914), (254, 1010581), (286, 897509), (382, 671957), (407, 630682), (481, 533654), (814, 315341), (962, 266827), (1397, 183742), (1651, 155474), (2101, 122174), (2483, 103378), (2794, 91871), (3302, 77737), (4202, 61087), (4699, 54626), (4966, 51689), (5291, 48514), (7067, 36322), (9398, 27313), (10582, 24257), (14134, 18161)]