665390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 1368576

約数和(自身を除く): 703186

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 263, 506, 526, 1265, 1315, 2530, 2630, 2893, 5786, 6049, 12098, 14465, 28930, 30245, 60490, 66539, 133078, 332695, 665390]

約数ペア:

[(1, 665390), (2, 332695), (5, 133078), (10, 66539), (11, 60490), (22, 30245), (23, 28930), (46, 14465), (55, 12098), (110, 6049), (115, 5786), (230, 2893), (253, 2630), (263, 2530), (506, 1315), (526, 1265)]