20176989995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1\times {\mathrm{7433}}^1$

素因数の和:7763

約数の個数: 32

約数和(自身を含む): 25417857024

約数和(自身を除く): 5240867029

約数列:

[1, 5, 31, 83, 155, 211, 415, 1055, 2573, 6541, 7433, 12865, 17513, 32705, 37165, 87565, 230423, 542903, 616939, 1152115, 1568363, 2714515, 3084695, 7841815, 19125109, 48619253, 95625545, 130174129, 243096265, 650870645, 4035397999, 20176989995]

約数ペア:

[(1, 20176989995), (5, 4035397999), (31, 650870645), (83, 243096265), (155, 130174129), (211, 95625545), (415, 48619253), (1055, 19125109), (2573, 7841815), (6541, 3084695), (7433, 2714515), (12865, 1568363), (17513, 1152115), (32705, 616939), (37165, 542903), (87565, 230423)]