209086280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{402089}}^1$

素因数の和:402113

約数の個数: 32

約数和(自身を含む): 506633400

約数和(自身を除く): 297547120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 402089, 804178, 1608356, 2010445, 3216712, 4020890, 5227157, 8041780, 10454314, 16083560, 20908628, 26135785, 41817256, 52271570, 104543140, 209086280]

約数ペア:

[(1, 209086280), (2, 104543140), (4, 52271570), (5, 41817256), (8, 26135785), (10, 20908628), (13, 16083560), (20, 10454314), (26, 8041780), (40, 5227157), (52, 4020890), (65, 3216712), (104, 2010445), (130, 1608356), (260, 804178), (520, 402089)]