77989756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 155898400

約数和(自身を除く): 77908644

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 193, 247, 386, 409, 494, 772, 818, 988, 1636, 2509, 3667, 5018, 5317, 7334, 7771, 10036, 10634, 14668, 15542, 21268, 31084, 47671, 78937, 95342, 101023, 157874, 190684, 202046, 315748, 404092, 1026181, 1499803, 2052362, 2999606, 4104724, 5999212, 19497439, 38994878, 77989756]

約数ペア:

[(1, 77989756), (2, 38994878), (4, 19497439), (13, 5999212), (19, 4104724), (26, 2999606), (38, 2052362), (52, 1499803), (76, 1026181), (193, 404092), (247, 315748), (386, 202046), (409, 190684), (494, 157874), (772, 101023), (818, 95342), (988, 78937), (1636, 47671), (2509, 31084), (3667, 21268), (5018, 15542), (5317, 14668), (7334, 10634), (7771, 10036)]