399889732

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2267}}^1$

素因数の和:2512

約数の個数: 48

約数和(自身を含む): 807770880

約数和(自身を除く): 407881148

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 211, 418, 422, 836, 844, 2267, 2321, 4009, 4534, 4642, 8018, 9068, 9284, 16036, 24937, 43073, 44099, 49874, 86146, 88198, 99748, 172292, 176396, 473803, 478337, 947606, 956674, 1895212, 1913348, 5261707, 9088403, 10523414, 18176806, 21046828, 36353612, 99972433, 199944866, 399889732]

約数ペア:

[(1, 399889732), (2, 199944866), (4, 99972433), (11, 36353612), (19, 21046828), (22, 18176806), (38, 10523414), (44, 9088403), (76, 5261707), (209, 1913348), (211, 1895212), (418, 956674), (422, 947606), (836, 478337), (844, 473803), (2267, 176396), (2321, 172292), (4009, 99748), (4534, 88198), (4642, 86146), (8018, 49874), (9068, 44099), (9284, 43073), (16036, 24937)]