78261988

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{937}}^1$

素因数の和:1124

約数の個数: 48

約数和(自身を含む): 165988480

約数和(自身を除く): 87726492

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 157, 266, 314, 532, 628, 937, 1099, 1874, 2198, 2983, 3748, 4396, 5966, 6559, 11932, 13118, 17803, 20881, 26236, 35606, 41762, 71212, 83524, 124621, 147109, 249242, 294218, 498484, 588436, 1029763, 2059526, 2795071, 4119052, 5590142, 11180284, 19565497, 39130994, 78261988]

約数ペア:

[(1, 78261988), (2, 39130994), (4, 19565497), (7, 11180284), (14, 5590142), (19, 4119052), (28, 2795071), (38, 2059526), (76, 1029763), (133, 588436), (157, 498484), (266, 294218), (314, 249242), (532, 147109), (628, 124621), (937, 83524), (1099, 71212), (1874, 41762), (2198, 35606), (2983, 26236), (3748, 20881), (4396, 17803), (5966, 13118), (6559, 11932)]