31440688

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:425

約数の個数: 40

約数和(自身を含む): 62565440

約数和(自身を除く): 31124752

約数列:

[1, 2, 4, 8, 16, 67, 134, 139, 211, 268, 278, 422, 536, 556, 844, 1072, 1112, 1688, 2224, 3376, 9313, 14137, 18626, 28274, 29329, 37252, 56548, 58658, 74504, 113096, 117316, 149008, 226192, 234632, 469264, 1965043, 3930086, 7860172, 15720344, 31440688]

約数ペア:

[(1, 31440688), (2, 15720344), (4, 7860172), (8, 3930086), (16, 1965043), (67, 469264), (134, 234632), (139, 226192), (211, 149008), (268, 117316), (278, 113096), (422, 74504), (536, 58658), (556, 56548), (844, 37252), (1072, 29329), (1112, 28274), (1688, 18626), (2224, 14137), (3376, 9313)]