19782770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 42353280

約数和(自身を除く): 22570510

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 235, 245, 329, 470, 490, 658, 859, 1645, 1718, 2303, 3290, 4295, 4606, 6013, 8590, 11515, 12026, 23030, 30065, 40373, 42091, 60130, 80746, 84182, 201865, 210455, 282611, 403730, 420910, 565222, 1413055, 1978277, 2826110, 3956554, 9891385, 19782770]

約数ペア:

[(1, 19782770), (2, 9891385), (5, 3956554), (7, 2826110), (10, 1978277), (14, 1413055), (35, 565222), (47, 420910), (49, 403730), (70, 282611), (94, 210455), (98, 201865), (235, 84182), (245, 80746), (329, 60130), (470, 42091), (490, 40373), (658, 30065), (859, 23030), (1645, 12026), (1718, 11515), (2303, 8590), (3290, 6013), (4295, 4606)]