222241420

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{16811}}^1$

素因数の和:17481

約数の個数: 24

約数和(自身を含む): 467440848

約数和(自身を除く): 245199428

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 13220, 16811, 33622, 67244, 84055, 168110, 336220, 11112071, 22224142, 44448284, 55560355, 111120710, 222241420]

約数ペア:

[(1, 222241420), (2, 111120710), (4, 55560355), (5, 44448284), (10, 22224142), (20, 11112071), (661, 336220), (1322, 168110), (2644, 84055), (3305, 67244), (6610, 33622), (13220, 16811)]