18237310

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 41328000

約数和(自身を除く): 23090690

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 343, 409, 455, 490, 637, 686, 818, 910, 1274, 1715, 2045, 2863, 3185, 3430, 4090, 4459, 5317, 5726, 6370, 8918, 10634, 14315, 20041, 22295, 26585, 28630, 37219, 40082, 44590, 53170, 74438, 100205, 140287, 186095, 200410, 260533, 280574, 372190, 521066, 701435, 1302665, 1402870, 1823731, 2605330, 3647462, 9118655, 18237310]

約数ペア:

[(1, 18237310), (2, 9118655), (5, 3647462), (7, 2605330), (10, 1823731), (13, 1402870), (14, 1302665), (26, 701435), (35, 521066), (49, 372190), (65, 280574), (70, 260533), (91, 200410), (98, 186095), (130, 140287), (182, 100205), (245, 74438), (343, 53170), (409, 44590), (455, 40082), (490, 37219), (637, 28630), (686, 26585), (818, 22295), (910, 20041), (1274, 14315), (1715, 10634), (2045, 8918), (2863, 6370), (3185, 5726), (3430, 5317), (4090, 4459)]