199845672

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{640531}}^1$

素因数の和:640553

約数の個数: 32

約数和(自身を含む): 538046880

約数和(自身を除く): 338201208

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 640531, 1281062, 1921593, 2562124, 3843186, 5124248, 7686372, 8326903, 15372744, 16653806, 24980709, 33307612, 49961418, 66615224, 99922836, 199845672]

約数ペア:

[(1, 199845672), (2, 99922836), (3, 66615224), (4, 49961418), (6, 33307612), (8, 24980709), (12, 16653806), (13, 15372744), (24, 8326903), (26, 7686372), (39, 5124248), (52, 3843186), (78, 2562124), (104, 1921593), (156, 1281062), (312, 640531)]