1291119310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{320377}}^1$

素因数の和:320428

約数の個数: 32

約数和(自身を含む): 2583528192

約数和(自身を除く): 1292408882

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 320377, 640754, 1601885, 3203770, 4164901, 8329802, 9931687, 19863374, 20824505, 41649010, 49658435, 99316870, 129111931, 258223862, 645559655, 1291119310]

約数ペア:

[(1, 1291119310), (2, 645559655), (5, 258223862), (10, 129111931), (13, 99316870), (26, 49658435), (31, 41649010), (62, 20824505), (65, 19863374), (130, 9931687), (155, 8329802), (310, 4164901), (403, 3203770), (806, 1601885), (2015, 640754), (4030, 320377)]