827605990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1\times {\mathrm{2179}}^1$

素因数の和:4204

約数の個数: 32

約数和(自身を含む): 1569600000

約数和(自身を除く): 741994010

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1999, 2179, 3998, 4358, 9995, 10895, 19990, 21790, 37981, 41401, 75962, 82802, 189905, 207005, 379810, 414010, 4355821, 8711642, 21779105, 43558210, 82760599, 165521198, 413802995, 827605990]

約数ペア:

[(1, 827605990), (2, 413802995), (5, 165521198), (10, 82760599), (19, 43558210), (38, 21779105), (95, 8711642), (190, 4355821), (1999, 414010), (2179, 379810), (3998, 207005), (4358, 189905), (9995, 82802), (10895, 75962), (19990, 41401), (21790, 37981)]