640366194

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{8543}}^1$

素因数の和:8623

約数の個数: 48

約数和(自身を含む): 1425344256

約数和(自身を除く): 784978062

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 961, 1209, 1922, 2418, 2883, 5766, 8543, 12493, 17086, 24986, 25629, 37479, 51258, 74958, 111059, 222118, 264833, 333177, 529666, 666354, 794499, 1588998, 3442829, 6885658, 8209823, 10328487, 16419646, 20656974, 24629469, 49258938, 106727699, 213455398, 320183097, 640366194]

約数ペア:

[(1, 640366194), (2, 320183097), (3, 213455398), (6, 106727699), (13, 49258938), (26, 24629469), (31, 20656974), (39, 16419646), (62, 10328487), (78, 8209823), (93, 6885658), (186, 3442829), (403, 1588998), (806, 794499), (961, 666354), (1209, 529666), (1922, 333177), (2418, 264833), (2883, 222118), (5766, 111059), (8543, 74958), (12493, 51258), (17086, 37479), (24986, 25629)]