28065940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{653}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 67681152

約数和(自身を除く): 39615212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 653, 1228, 1306, 1535, 2149, 2612, 3070, 3265, 4298, 4571, 6140, 6530, 8596, 9142, 10745, 13060, 18284, 21490, 22855, 42980, 45710, 91420, 200471, 400942, 801884, 1002355, 1403297, 2004710, 2806594, 4009420, 5613188, 7016485, 14032970, 28065940]

約数ペア:

[(1, 28065940), (2, 14032970), (4, 7016485), (5, 5613188), (7, 4009420), (10, 2806594), (14, 2004710), (20, 1403297), (28, 1002355), (35, 801884), (70, 400942), (140, 200471), (307, 91420), (614, 45710), (653, 42980), (1228, 22855), (1306, 21490), (1535, 18284), (2149, 13060), (2612, 10745), (3070, 9142), (3265, 8596), (4298, 6530), (4571, 6140)]