644421872

素因数分解:

$2^4\times {\mathrm{2039}}^1\times {\mathrm{19753}}^1$

素因数の和:21800

約数の個数: 20

約数和(自身を含む): 1249242960

約数和(自身を除く): 604821088

約数列:

[1, 2, 4, 8, 16, 2039, 4078, 8156, 16312, 19753, 32624, 39506, 79012, 158024, 316048, 40276367, 80552734, 161105468, 322210936, 644421872]

約数ペア:

[(1, 644421872), (2, 322210936), (4, 161105468), (8, 80552734), (16, 40276367), (2039, 316048), (4078, 158024), (8156, 79012), (16312, 39506), (19753, 32624)]