80490725

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 121230336

約数和(自身を除く): 40739611

約数列:

[1, 5, 7, 25, 31, 35, 37, 155, 175, 185, 217, 259, 401, 775, 925, 1085, 1147, 1295, 2005, 2807, 5425, 5735, 6475, 8029, 10025, 12431, 14035, 14837, 28675, 40145, 62155, 70175, 74185, 87017, 103859, 200725, 310775, 370925, 435085, 459947, 519295, 2175425, 2299735, 2596475, 3219629, 11498675, 16098145, 80490725]

約数ペア:

[(1, 80490725), (5, 16098145), (7, 11498675), (25, 3219629), (31, 2596475), (35, 2299735), (37, 2175425), (155, 519295), (175, 459947), (185, 435085), (217, 370925), (259, 310775), (401, 200725), (775, 103859), (925, 87017), (1085, 74185), (1147, 70175), (1295, 62155), (2005, 40145), (2807, 28675), (5425, 14837), (5735, 14035), (6475, 12431), (8029, 10025)]