78453940

素因数分解:

$2^2\times 5^1\times {\mathrm{1627}}^1\times {\mathrm{2411}}^1$

素因数の和:4047

約数の個数: 24

約数和(自身を含む): 164922912

約数和(自身を除く): 86468972

約数列:

[1, 2, 4, 5, 10, 20, 1627, 2411, 3254, 4822, 6508, 8135, 9644, 12055, 16270, 24110, 32540, 48220, 3922697, 7845394, 15690788, 19613485, 39226970, 78453940]

約数ペア:

[(1, 78453940), (2, 39226970), (4, 19613485), (5, 15690788), (10, 7845394), (20, 3922697), (1627, 48220), (2411, 32540), (3254, 24110), (4822, 16270), (6508, 12055), (8135, 9644)]