639732005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1\times {\mathrm{1097}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 876572928

約数和(自身を除く): 236840923

約数列:

[1, 5, 11, 23, 55, 115, 253, 461, 1097, 1265, 2305, 5071, 5485, 10603, 12067, 25231, 25355, 53015, 60335, 116633, 126155, 277541, 505717, 583165, 1387705, 2528585, 5562887, 11631491, 27814435, 58157455, 127946401, 639732005]

約数ペア:

[(1, 639732005), (5, 127946401), (11, 58157455), (23, 27814435), (55, 11631491), (115, 5562887), (253, 2528585), (461, 1387705), (1097, 583165), (1265, 505717), (2305, 277541), (5071, 126155), (5485, 116633), (10603, 60335), (12067, 53015), (25231, 25355)]