20101778540

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4205393}}^1$

素因数の和:4205641

約数の個数: 24

約数和(自身を含む): 42390371520

約数和(自身を除く): 22288592980

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 4205393, 8410786, 16821572, 21026965, 42053930, 84107860, 1005088927, 2010177854, 4020355708, 5025444635, 10050889270, 20101778540]

約数ペア:

[(1, 20101778540), (2, 10050889270), (4, 5025444635), (5, 4020355708), (10, 2010177854), (20, 1005088927), (239, 84107860), (478, 42053930), (956, 21026965), (1195, 16821572), (2390, 8410786), (4780, 4205393)]