28850140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1847}}^1$

素因数の和:1938

約数の個数: 48

約数和(自身を含む): 67060224

約数和(自身を除く): 38210084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1847, 3124, 3694, 3905, 7388, 7810, 9235, 15620, 18470, 20317, 36940, 40634, 81268, 101585, 131137, 203170, 262274, 406340, 524548, 655685, 1311370, 1442507, 2622740, 2885014, 5770028, 7212535, 14425070, 28850140]

約数ペア:

[(1, 28850140), (2, 14425070), (4, 7212535), (5, 5770028), (10, 2885014), (11, 2622740), (20, 1442507), (22, 1311370), (44, 655685), (55, 524548), (71, 406340), (110, 262274), (142, 203170), (220, 131137), (284, 101585), (355, 81268), (710, 40634), (781, 36940), (1420, 20317), (1562, 18470), (1847, 15620), (3124, 9235), (3694, 7810), (3905, 7388)]