642000968

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1231}}^1$

素因数の和:1450

約数の個数: 64

約数和(自身を含む): 1407436800

約数和(自身を除く): 765435832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 139, 268, 278, 469, 536, 556, 938, 973, 1112, 1231, 1876, 1946, 2462, 3752, 3892, 4924, 7784, 8617, 9313, 9848, 17234, 18626, 34468, 37252, 65191, 68936, 74504, 82477, 130382, 164954, 171109, 260764, 329908, 342218, 521528, 577339, 659816, 684436, 1154678, 1197763, 1368872, 2309356, 2395526, 4618712, 4791052, 9582104, 11464303, 22928606, 45857212, 80250121, 91714424, 160500242, 321000484, 642000968]

約数ペア:

[(1, 642000968), (2, 321000484), (4, 160500242), (7, 91714424), (8, 80250121), (14, 45857212), (28, 22928606), (56, 11464303), (67, 9582104), (134, 4791052), (139, 4618712), (268, 2395526), (278, 2309356), (469, 1368872), (536, 1197763), (556, 1154678), (938, 684436), (973, 659816), (1112, 577339), (1231, 521528), (1876, 342218), (1946, 329908), (2462, 260764), (3752, 171109), (3892, 164954), (4924, 130382), (7784, 82477), (8617, 74504), (9313, 68936), (9848, 65191), (17234, 37252), (18626, 34468)]