1397494540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{11971}}^1$

素因数の和:12442

約数の個数: 48

約数和(自身を含む): 3167791200

約数和(自身を除く): 1770296660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 449, 898, 1796, 2245, 4490, 5837, 8980, 11674, 11971, 23348, 23942, 29185, 47884, 58370, 59855, 116740, 119710, 155623, 239420, 311246, 622492, 778115, 1556230, 3112460, 5374979, 10749958, 21499916, 26874895, 53749790, 69874727, 107499580, 139749454, 279498908, 349373635, 698747270, 1397494540]

約数ペア:

[(1, 1397494540), (2, 698747270), (4, 349373635), (5, 279498908), (10, 139749454), (13, 107499580), (20, 69874727), (26, 53749790), (52, 26874895), (65, 21499916), (130, 10749958), (260, 5374979), (449, 3112460), (898, 1556230), (1796, 778115), (2245, 622492), (4490, 311246), (5837, 239420), (8980, 155623), (11674, 119710), (11971, 116740), (23348, 59855), (23942, 58370), (29185, 47884)]