31301998

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 62512128

約数和(自身を除く): 31210130

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 67, 91, 119, 134, 151, 182, 221, 238, 302, 442, 469, 871, 938, 1057, 1139, 1547, 1742, 1963, 2114, 2278, 2567, 3094, 3926, 5134, 6097, 7973, 10117, 12194, 13741, 14807, 15946, 17969, 20234, 27482, 29614, 33371, 35938, 66742, 70819, 103649, 131521, 141638, 171989, 207298, 233597, 263042, 343978, 467194, 920647, 1203923, 1841294, 2235857, 2407846, 4471714, 15650999, 31301998]

約数ペア:

[(1, 31301998), (2, 15650999), (7, 4471714), (13, 2407846), (14, 2235857), (17, 1841294), (26, 1203923), (34, 920647), (67, 467194), (91, 343978), (119, 263042), (134, 233597), (151, 207298), (182, 171989), (221, 141638), (238, 131521), (302, 103649), (442, 70819), (469, 66742), (871, 35938), (938, 33371), (1057, 29614), (1139, 27482), (1547, 20234), (1742, 17969), (1963, 15946), (2114, 14807), (2278, 13741), (2567, 12194), (3094, 10117), (3926, 7973), (5134, 6097)]