18964330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2239}}^1$

素因数の和:2275

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 23936150

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 242, 385, 605, 770, 847, 1210, 1694, 2239, 4235, 4478, 8470, 11195, 15673, 22390, 24629, 31346, 49258, 78365, 123145, 156730, 172403, 246290, 270919, 344806, 541838, 862015, 1354595, 1724030, 1896433, 2709190, 3792866, 9482165, 18964330]

約数ペア:

[(1, 18964330), (2, 9482165), (5, 3792866), (7, 2709190), (10, 1896433), (11, 1724030), (14, 1354595), (22, 862015), (35, 541838), (55, 344806), (70, 270919), (77, 246290), (110, 172403), (121, 156730), (154, 123145), (242, 78365), (385, 49258), (605, 31346), (770, 24629), (847, 22390), (1210, 15673), (1694, 11195), (2239, 8470), (4235, 4478)]