20894130430

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{445789}}^1$

素因数の和:445948

約数の個数: 32

約数和(自身を含む): 38837224800

約数和(自身を除く): 17943094370

約数列:

[1, 2, 5, 10, 43, 86, 109, 215, 218, 430, 545, 1090, 4687, 9374, 23435, 46870, 445789, 891578, 2228945, 4457890, 19168927, 38337854, 48591001, 95844635, 97182002, 191689270, 242955005, 485910010, 2089413043, 4178826086, 10447065215, 20894130430]

約数ペア:

[(1, 20894130430), (2, 10447065215), (5, 4178826086), (10, 2089413043), (43, 485910010), (86, 242955005), (109, 191689270), (215, 97182002), (218, 95844635), (430, 48591001), (545, 38337854), (1090, 19168927), (4687, 4457890), (9374, 2228945), (23435, 891578), (46870, 445789)]