216213530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{4127}}^1$

素因数の和:4191

約数の個数: 48

約数和(自身を含む): 435124224

約数和(自身を除く): 218910694

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 1690, 2015, 4030, 4127, 5239, 8254, 10478, 20635, 26195, 41270, 52390, 53651, 107302, 127937, 255874, 268255, 536510, 639685, 697463, 1279370, 1394926, 1663181, 3326362, 3487315, 6974630, 8315905, 16631810, 21621353, 43242706, 108106765, 216213530]

約数ペア:

[(1, 216213530), (2, 108106765), (5, 43242706), (10, 21621353), (13, 16631810), (26, 8315905), (31, 6974630), (62, 3487315), (65, 3326362), (130, 1663181), (155, 1394926), (169, 1279370), (310, 697463), (338, 639685), (403, 536510), (806, 268255), (845, 255874), (1690, 127937), (2015, 107302), (4030, 53651), (4127, 52390), (5239, 41270), (8254, 26195), (10478, 20635)]