18894260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12269}}^1$

素因数の和:12296

約数の個数: 48

約数和(自身を含む): 49472640

約数和(自身を除く): 30578380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12269, 24538, 49076, 61345, 85883, 122690, 134959, 171766, 245380, 269918, 343532, 429415, 539836, 674795, 858830, 944713, 1349590, 1717660, 1889426, 2699180, 3778852, 4723565, 9447130, 18894260]

約数ペア:

[(1, 18894260), (2, 9447130), (4, 4723565), (5, 3778852), (7, 2699180), (10, 1889426), (11, 1717660), (14, 1349590), (20, 944713), (22, 858830), (28, 674795), (35, 539836), (44, 429415), (55, 343532), (70, 269918), (77, 245380), (110, 171766), (140, 134959), (154, 122690), (220, 85883), (308, 61345), (385, 49076), (770, 24538), (1540, 12269)]