25290860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 62569584

約数和(自身を除く): 37278724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 131, 140, 196, 197, 245, 262, 394, 490, 524, 655, 788, 917, 980, 985, 1310, 1379, 1834, 1970, 2620, 2758, 3668, 3940, 4585, 5516, 6419, 6895, 9170, 9653, 12838, 13790, 18340, 19306, 25676, 25807, 27580, 32095, 38612, 48265, 51614, 64190, 96530, 103228, 128380, 129035, 180649, 193060, 258070, 361298, 516140, 722596, 903245, 1264543, 1806490, 2529086, 3612980, 5058172, 6322715, 12645430, 25290860]

約数ペア:

[(1, 25290860), (2, 12645430), (4, 6322715), (5, 5058172), (7, 3612980), (10, 2529086), (14, 1806490), (20, 1264543), (28, 903245), (35, 722596), (49, 516140), (70, 361298), (98, 258070), (131, 193060), (140, 180649), (196, 129035), (197, 128380), (245, 103228), (262, 96530), (394, 64190), (490, 51614), (524, 48265), (655, 38612), (788, 32095), (917, 27580), (980, 25807), (985, 25676), (1310, 19306), (1379, 18340), (1834, 13790), (1970, 12838), (2620, 9653), (2758, 9170), (3668, 6895), (3940, 6419), (4585, 5516)]