77687570

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 142179840

約数和(自身を除く): 64492270

約数列:

[1, 2, 5, 10, 109, 218, 263, 271, 526, 542, 545, 1090, 1315, 1355, 2630, 2710, 28667, 29539, 57334, 59078, 71273, 142546, 143335, 147695, 286670, 295390, 356365, 712730, 7768757, 15537514, 38843785, 77687570]

約数ペア:

[(1, 77687570), (2, 38843785), (5, 15537514), (10, 7768757), (109, 712730), (218, 356365), (263, 295390), (271, 286670), (526, 147695), (542, 143335), (545, 142546), (1090, 71273), (1315, 59078), (1355, 57334), (2630, 29539), (2710, 28667)]