277590430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{68881}}^1$

素因数の和:68932

約数の個数: 32

約数和(自身を含む): 555464448

約数和(自身を除く): 277874018

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 68881, 137762, 344405, 688810, 895453, 1790906, 2135311, 4270622, 4477265, 8954530, 10676555, 21353110, 27759043, 55518086, 138795215, 277590430]

約数ペア:

[(1, 277590430), (2, 138795215), (5, 55518086), (10, 27759043), (13, 21353110), (26, 10676555), (31, 8954530), (62, 4477265), (65, 4270622), (130, 2135311), (155, 1790906), (310, 895453), (403, 688810), (806, 344405), (2015, 137762), (4030, 68881)]