12949240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 31298400

約数和(自身を除く): 18349160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 137, 139, 170, 274, 278, 340, 548, 556, 680, 685, 695, 1096, 1112, 1370, 1390, 2329, 2363, 2740, 2780, 4658, 4726, 5480, 5560, 9316, 9452, 11645, 11815, 18632, 18904, 19043, 23290, 23630, 38086, 46580, 47260, 76172, 93160, 94520, 95215, 152344, 190430, 323731, 380860, 647462, 761720, 1294924, 1618655, 2589848, 3237310, 6474620, 12949240]

約数ペア:

[(1, 12949240), (2, 6474620), (4, 3237310), (5, 2589848), (8, 1618655), (10, 1294924), (17, 761720), (20, 647462), (34, 380860), (40, 323731), (68, 190430), (85, 152344), (136, 95215), (137, 94520), (139, 93160), (170, 76172), (274, 47260), (278, 46580), (340, 38086), (548, 23630), (556, 23290), (680, 19043), (685, 18904), (695, 18632), (1096, 11815), (1112, 11645), (1370, 9452), (1390, 9316), (2329, 5560), (2363, 5480), (2740, 4726), (2780, 4658)]