51138460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36013}}^1$

素因数の和:36093

約数の個数: 24

約数和(自身を含む): 108906336

約数和(自身を除く): 57767876

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 36013, 72026, 144052, 180065, 360130, 720260, 2556923, 5113846, 10227692, 12784615, 25569230, 51138460]

約数ペア:

[(1, 51138460), (2, 25569230), (4, 12784615), (5, 10227692), (10, 5113846), (20, 2556923), (71, 720260), (142, 360130), (284, 180065), (355, 144052), (710, 72026), (1420, 36013)]