13123840

素因数分解:

$2^8\times 5^1\times {\mathrm{10253}}^1$

素因数の和:10274

約数の個数: 36

約数和(自身を含む): 31438764

約数和(自身を除く): 18314924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 10253, 20506, 41012, 51265, 82024, 102530, 164048, 205060, 328096, 410120, 656192, 820240, 1312384, 1640480, 2624768, 3280960, 6561920, 13123840]

約数ペア:

[(1, 13123840), (2, 6561920), (4, 3280960), (5, 2624768), (8, 1640480), (10, 1312384), (16, 820240), (20, 656192), (32, 410120), (40, 328096), (64, 205060), (80, 164048), (128, 102530), (160, 82024), (256, 51265), (320, 41012), (640, 20506), (1280, 10253)]