257512948

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3331}}^1$

素因数の和:3604

約数の個数: 48

約数和(自身を含む): 564254208

約数和(自身を除く): 306741260

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 251, 308, 502, 1004, 1757, 2761, 3331, 3514, 5522, 6662, 7028, 11044, 13324, 19327, 23317, 36641, 38654, 46634, 73282, 77308, 93268, 146564, 256487, 512974, 836081, 1025948, 1672162, 3344324, 5852567, 9196891, 11705134, 18393782, 23410268, 36787564, 64378237, 128756474, 257512948]

約数ペア:

[(1, 257512948), (2, 128756474), (4, 64378237), (7, 36787564), (11, 23410268), (14, 18393782), (22, 11705134), (28, 9196891), (44, 5852567), (77, 3344324), (154, 1672162), (251, 1025948), (308, 836081), (502, 512974), (1004, 256487), (1757, 146564), (2761, 93268), (3331, 77308), (3514, 73282), (5522, 46634), (6662, 38654), (7028, 36641), (11044, 23317), (13324, 19327)]