2018567900

素因数分解:

$2^2\times 5^2\times {\mathrm{991}}^1\times {\mathrm{20369}}^1$

素因数の和:21374

約数の個数: 36

約数和(自身を含む): 4384927680

約数和(自身を除く): 2366359780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 991, 1982, 3964, 4955, 9910, 19820, 20369, 24775, 40738, 49550, 81476, 99100, 101845, 203690, 407380, 509225, 1018450, 2036900, 20185679, 40371358, 80742716, 100928395, 201856790, 403713580, 504641975, 1009283950, 2018567900]

約数ペア:

[(1, 2018567900), (2, 1009283950), (4, 504641975), (5, 403713580), (10, 201856790), (20, 100928395), (25, 80742716), (50, 40371358), (100, 20185679), (991, 2036900), (1982, 1018450), (3964, 509225), (4955, 407380), (9910, 203690), (19820, 101845), (20369, 99100), (24775, 81476), (40738, 49550)]