1285290430

素因数分解:

$2^1\times 5^1\times {\mathrm{2011}}^1\times {\mathrm{63913}}^1$

素因数の和:65931

約数の個数: 16

約数和(自身を含む): 2314709424

約数和(自身を除く): 1029418994

約数列:

[1, 2, 5, 10, 2011, 4022, 10055, 20110, 63913, 127826, 319565, 639130, 128529043, 257058086, 642645215, 1285290430]

約数ペア:

[(1, 1285290430), (2, 642645215), (5, 257058086), (10, 128529043), (2011, 639130), (4022, 319565), (10055, 127826), (20110, 63913)]