291245890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{21751}}^1$

素因数の和:21874

約数の個数: 32

約数和(自身を含む): 570076416

約数和(自身を除く): 278830526

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 2678, 6695, 13390, 21751, 43502, 108755, 217510, 282763, 565526, 1413815, 2240353, 2827630, 4480706, 11201765, 22403530, 29124589, 58249178, 145622945, 291245890]

約数ペア:

[(1, 291245890), (2, 145622945), (5, 58249178), (10, 29124589), (13, 22403530), (26, 11201765), (65, 4480706), (103, 2827630), (130, 2240353), (206, 1413815), (515, 565526), (1030, 282763), (1339, 217510), (2678, 108755), (6695, 43502), (13390, 21751)]