2007664520

素因数分解:

$2^3\times 5^1\times {\mathrm{4421}}^1\times {\mathrm{11353}}^1$

素因数の和:15785

約数の個数: 32

約数和(自身を含む): 4518664920

約数和(自身を除く): 2511000400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4421, 8842, 11353, 17684, 22105, 22706, 35368, 44210, 45412, 56765, 88420, 90824, 113530, 176840, 227060, 454120, 50191613, 100383226, 200766452, 250958065, 401532904, 501916130, 1003832260, 2007664520]

約数ペア:

[(1, 2007664520), (2, 1003832260), (4, 501916130), (5, 401532904), (8, 250958065), (10, 200766452), (20, 100383226), (40, 50191613), (4421, 454120), (8842, 227060), (11353, 176840), (17684, 113530), (22105, 90824), (22706, 88420), (35368, 56765), (44210, 45412)]