78400816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{376927}}^1$

素因数の和:376948

約数の個数: 20

約数和(自身を含む): 163586752

約数和(自身を除く): 85185936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 376927, 753854, 1507708, 3015416, 4900051, 6030832, 9800102, 19600204, 39200408, 78400816]

約数ペア:

[(1, 78400816), (2, 39200408), (4, 19600204), (8, 9800102), (13, 6030832), (16, 4900051), (26, 3015416), (52, 1507708), (104, 753854), (208, 376927)]