20709700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 72

約数和(自身を含む): 49934304

約数和(自身を除く): 29224604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 67, 100, 110, 134, 220, 268, 275, 281, 335, 550, 562, 670, 737, 1100, 1124, 1340, 1405, 1474, 1675, 2810, 2948, 3091, 3350, 3685, 5620, 6182, 6700, 7025, 7370, 12364, 14050, 14740, 15455, 18425, 18827, 28100, 30910, 36850, 37654, 61820, 73700, 75308, 77275, 94135, 154550, 188270, 207097, 309100, 376540, 414194, 470675, 828388, 941350, 1035485, 1882700, 2070970, 4141940, 5177425, 10354850, 20709700]

約数ペア:

[(1, 20709700), (2, 10354850), (4, 5177425), (5, 4141940), (10, 2070970), (11, 1882700), (20, 1035485), (22, 941350), (25, 828388), (44, 470675), (50, 414194), (55, 376540), (67, 309100), (100, 207097), (110, 188270), (134, 154550), (220, 94135), (268, 77275), (275, 75308), (281, 73700), (335, 61820), (550, 37654), (562, 36850), (670, 30910), (737, 28100), (1100, 18827), (1124, 18425), (1340, 15455), (1405, 14740), (1474, 14050), (1675, 12364), (2810, 7370), (2948, 7025), (3091, 6700), (3350, 6182), (3685, 5620)]