209426492740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1\times {\mathrm{245627}}^1$

素因数の和:246204

約数の個数: 48

約数和(自身を含む): 445667443200

約数和(自身を除く): 236240950460

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 479, 890, 958, 1780, 1916, 2395, 4790, 9580, 42631, 85262, 170524, 213155, 245627, 426310, 491254, 852620, 982508, 1228135, 2456270, 4912540, 21860803, 43721606, 87443212, 109304015, 117655333, 218608030, 235310666, 437216060, 470621332, 588276665, 1176553330, 2353106660, 10471324637, 20942649274, 41885298548, 52356623185, 104713246370, 209426492740]

約数ペア:

[(1, 209426492740), (2, 104713246370), (4, 52356623185), (5, 41885298548), (10, 20942649274), (20, 10471324637), (89, 2353106660), (178, 1176553330), (356, 588276665), (445, 470621332), (479, 437216060), (890, 235310666), (958, 218608030), (1780, 117655333), (1916, 109304015), (2395, 87443212), (4790, 43721606), (9580, 21860803), (42631, 4912540), (85262, 2456270), (170524, 1228135), (213155, 982508), (245627, 852620), (426310, 491254)]