15420790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2861}}^1$

素因数の和:2893

約数の個数: 48

約数和(自身を含む): 35236944

約数和(自身を除く): 19816154

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 2861, 5390, 5722, 14305, 20027, 28610, 31471, 40054, 62942, 100135, 140189, 157355, 200270, 220297, 280378, 314710, 440594, 700945, 1101485, 1401890, 1542079, 2202970, 3084158, 7710395, 15420790]

約数ペア:

[(1, 15420790), (2, 7710395), (5, 3084158), (7, 2202970), (10, 1542079), (11, 1401890), (14, 1101485), (22, 700945), (35, 440594), (49, 314710), (55, 280378), (70, 220297), (77, 200270), (98, 157355), (110, 140189), (154, 100135), (245, 62942), (385, 40054), (490, 31471), (539, 28610), (770, 20027), (1078, 14305), (2695, 5722), (2861, 5390)]