168259780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:845

約数の個数: 72

約数和(自身を含む): 388850112

約数和(自身を除く): 220590332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 169, 260, 268, 335, 338, 670, 676, 743, 845, 871, 1340, 1486, 1690, 1742, 2972, 3380, 3484, 3715, 4355, 7430, 8710, 9659, 11323, 14860, 17420, 19318, 22646, 38636, 45292, 48295, 49781, 56615, 96590, 99562, 113230, 125567, 193180, 199124, 226460, 248905, 251134, 497810, 502268, 627835, 647153, 995620, 1255670, 1294306, 2511340, 2588612, 3235765, 6471530, 8412989, 12943060, 16825978, 33651956, 42064945, 84129890, 168259780]

約数ペア:

[(1, 168259780), (2, 84129890), (4, 42064945), (5, 33651956), (10, 16825978), (13, 12943060), (20, 8412989), (26, 6471530), (52, 3235765), (65, 2588612), (67, 2511340), (130, 1294306), (134, 1255670), (169, 995620), (260, 647153), (268, 627835), (335, 502268), (338, 497810), (670, 251134), (676, 248905), (743, 226460), (845, 199124), (871, 193180), (1340, 125567), (1486, 113230), (1690, 99562), (1742, 96590), (2972, 56615), (3380, 49781), (3484, 48295), (3715, 45292), (4355, 38636), (7430, 22646), (8710, 19318), (9659, 17420), (11323, 14860)]