777772180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1\times {\mathrm{1831}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 1663837056

約数和(自身を除く): 886064876

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 317, 335, 634, 670, 1268, 1340, 1585, 1831, 3170, 3662, 6340, 7324, 9155, 18310, 21239, 36620, 42478, 84956, 106195, 122677, 212390, 245354, 424780, 490708, 580427, 613385, 1160854, 1226770, 2321708, 2453540, 2902135, 5804270, 11608540, 38888609, 77777218, 155554436, 194443045, 388886090, 777772180]

約数ペア:

[(1, 777772180), (2, 388886090), (4, 194443045), (5, 155554436), (10, 77777218), (20, 38888609), (67, 11608540), (134, 5804270), (268, 2902135), (317, 2453540), (335, 2321708), (634, 1226770), (670, 1160854), (1268, 613385), (1340, 580427), (1585, 490708), (1831, 424780), (3170, 245354), (3662, 212390), (6340, 122677), (7324, 106195), (9155, 84956), (18310, 42478), (21239, 36620)]