20470085

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1787}}^1$

素因数の和:1900

約数の個数: 16

約数和(自身を含む): 25747200

約数和(自身を除く): 5277115

約数列:

[1, 5, 29, 79, 145, 395, 1787, 2291, 8935, 11455, 51823, 141173, 259115, 705865, 4094017, 20470085]

約数ペア:

[(1, 20470085), (5, 4094017), (29, 705865), (79, 259115), (145, 141173), (395, 51823), (1787, 11455), (2291, 8935)]