128941960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3313}}^1$

素因数の和:3470

約数の個数: 64

約数和(自身を含む): 334051200

約数和(自身を除く): 205109240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3313, 3892, 4865, 5560, 6626, 7784, 9730, 13252, 16565, 19460, 23191, 26504, 33130, 38920, 46382, 66260, 92764, 115955, 132520, 185528, 231910, 460507, 463820, 921014, 927640, 1842028, 2302535, 3223549, 3684056, 4605070, 6447098, 9210140, 12894196, 16117745, 18420280, 25788392, 32235490, 64470980, 128941960]

約数ペア:

[(1, 128941960), (2, 64470980), (4, 32235490), (5, 25788392), (7, 18420280), (8, 16117745), (10, 12894196), (14, 9210140), (20, 6447098), (28, 4605070), (35, 3684056), (40, 3223549), (56, 2302535), (70, 1842028), (139, 927640), (140, 921014), (278, 463820), (280, 460507), (556, 231910), (695, 185528), (973, 132520), (1112, 115955), (1390, 92764), (1946, 66260), (2780, 46382), (3313, 38920), (3892, 33130), (4865, 26504), (5560, 23191), (6626, 19460), (7784, 16565), (9730, 13252)]