20801660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4111}}^1$

素因数の和:4154

約数の個数: 48

約数和(自身を含む): 49738752

約数和(自身を除く): 28937092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4111, 5060, 8222, 16444, 20555, 41110, 45221, 82220, 90442, 94553, 180884, 189106, 226105, 378212, 452210, 472765, 904420, 945530, 1040083, 1891060, 2080166, 4160332, 5200415, 10400830, 20801660]

約数ペア:

[(1, 20801660), (2, 10400830), (4, 5200415), (5, 4160332), (10, 2080166), (11, 1891060), (20, 1040083), (22, 945530), (23, 904420), (44, 472765), (46, 452210), (55, 378212), (92, 226105), (110, 189106), (115, 180884), (220, 94553), (230, 90442), (253, 82220), (460, 45221), (506, 41110), (1012, 20555), (1265, 16444), (2530, 8222), (4111, 5060)]