389701078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1\times {\mathrm{641}}^1$

素因数の和:1072

約数の個数: 32

約数和(自身を含む): 641743200

約数和(自身を除く): 252042122

約数列:

[1, 2, 13, 26, 67, 134, 349, 641, 698, 871, 1282, 1742, 4537, 8333, 9074, 16666, 23383, 42947, 46766, 85894, 223709, 303979, 447418, 558311, 607958, 1116622, 2908217, 5816434, 14988503, 29977006, 194850539, 389701078]

約数ペア:

[(1, 389701078), (2, 194850539), (13, 29977006), (26, 14988503), (67, 5816434), (134, 2908217), (349, 1116622), (641, 607958), (698, 558311), (871, 447418), (1282, 303979), (1742, 223709), (4537, 85894), (8333, 46766), (9074, 42947), (16666, 23383)]