128865940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{3323}}^1$

素因数の和:3616

約数の個数: 48

約数和(自身を含む): 310488192

約数和(自身を除く): 181622252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2770, 3323, 3878, 5540, 6646, 7756, 9695, 13292, 16615, 19390, 23261, 33230, 38780, 46522, 66460, 93044, 116305, 232610, 465220, 920471, 1840942, 3681884, 4602355, 6443297, 9204710, 12886594, 18409420, 25773188, 32216485, 64432970, 128865940]

約数ペア:

[(1, 128865940), (2, 64432970), (4, 32216485), (5, 25773188), (7, 18409420), (10, 12886594), (14, 9204710), (20, 6443297), (28, 4602355), (35, 3681884), (70, 1840942), (140, 920471), (277, 465220), (554, 232610), (1108, 116305), (1385, 93044), (1939, 66460), (2770, 46522), (3323, 38780), (3878, 33230), (5540, 23261), (6646, 19390), (7756, 16615), (9695, 13292)]