420210880

素因数分解:

$2^6\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4993}}^1$

素因数の和:5273

約数の個数: 56

約数和(自身を含む): 1004632992

約数和(自身を除く): 584422112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 263, 320, 526, 1052, 1315, 2104, 2630, 4208, 4993, 5260, 8416, 9986, 10520, 16832, 19972, 21040, 24965, 39944, 42080, 49930, 79888, 84160, 99860, 159776, 199720, 319552, 399440, 798880, 1313159, 1597760, 2626318, 5252636, 6565795, 10505272, 13131590, 21010544, 26263180, 42021088, 52526360, 84042176, 105052720, 210105440, 420210880]

約数ペア:

[(1, 420210880), (2, 210105440), (4, 105052720), (5, 84042176), (8, 52526360), (10, 42021088), (16, 26263180), (20, 21010544), (32, 13131590), (40, 10505272), (64, 6565795), (80, 5252636), (160, 2626318), (263, 1597760), (320, 1313159), (526, 798880), (1052, 399440), (1315, 319552), (2104, 199720), (2630, 159776), (4208, 99860), (4993, 84160), (5260, 79888), (8416, 49930), (9986, 42080), (10520, 39944), (16832, 24965), (19972, 21040)]