68457220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{937}}^1$

素因数の和:1240

約数の個数: 48

約数和(自身を含む): 155535408

約数和(自身を除く): 87078188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 281, 562, 937, 1124, 1405, 1874, 2810, 3653, 3748, 4685, 5620, 7306, 9370, 12181, 14612, 18265, 18740, 24362, 36530, 48724, 60905, 73060, 121810, 243620, 263297, 526594, 1053188, 1316485, 2632970, 3422861, 5265940, 6845722, 13691444, 17114305, 34228610, 68457220]

約数ペア:

[(1, 68457220), (2, 34228610), (4, 17114305), (5, 13691444), (10, 6845722), (13, 5265940), (20, 3422861), (26, 2632970), (52, 1316485), (65, 1053188), (130, 526594), (260, 263297), (281, 243620), (562, 121810), (937, 73060), (1124, 60905), (1405, 48724), (1874, 36530), (2810, 24362), (3653, 18740), (3748, 18265), (4685, 14612), (5620, 12181), (7306, 9370)]