19391260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 48492864

約数和(自身を除く): 29101604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 70, 94, 98, 140, 188, 196, 235, 245, 329, 421, 470, 490, 658, 842, 940, 980, 1316, 1645, 1684, 2105, 2303, 2947, 3290, 4210, 4606, 5894, 6580, 8420, 9212, 11515, 11788, 14735, 19787, 20629, 23030, 29470, 39574, 41258, 46060, 58940, 79148, 82516, 98935, 103145, 138509, 197870, 206290, 277018, 395740, 412580, 554036, 692545, 969563, 1385090, 1939126, 2770180, 3878252, 4847815, 9695630, 19391260]

約数ペア:

[(1, 19391260), (2, 9695630), (4, 4847815), (5, 3878252), (7, 2770180), (10, 1939126), (14, 1385090), (20, 969563), (28, 692545), (35, 554036), (47, 412580), (49, 395740), (70, 277018), (94, 206290), (98, 197870), (140, 138509), (188, 103145), (196, 98935), (235, 82516), (245, 79148), (329, 58940), (421, 46060), (470, 41258), (490, 39574), (658, 29470), (842, 23030), (940, 20629), (980, 19787), (1316, 14735), (1645, 11788), (1684, 11515), (2105, 9212), (2303, 8420), (2947, 6580), (3290, 5894), (4210, 4606)]