639428712

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{2049451}}^1$

素因数の和:2049473

約数の個数: 32

約数和(自身を含む): 1721539680

約数和(自身を除く): 1082110968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 2049451, 4098902, 6148353, 8197804, 12296706, 16395608, 24593412, 26642863, 49186824, 53285726, 79928589, 106571452, 159857178, 213142904, 319714356, 639428712]

約数ペア:

[(1, 639428712), (2, 319714356), (3, 213142904), (4, 159857178), (6, 106571452), (8, 79928589), (12, 53285726), (13, 49186824), (24, 26642863), (26, 24593412), (39, 16395608), (52, 12296706), (78, 8197804), (104, 6148353), (156, 4098902), (312, 2049451)]