19039480

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1187}}^1$

素因数の和:1599

約数の個数: 32

約数和(自身を含む): 42981840

約数和(自身を除く): 23942360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1187, 1604, 2005, 2374, 3208, 4010, 4748, 5935, 8020, 9496, 11870, 16040, 23740, 47480, 475987, 951974, 1903948, 2379935, 3807896, 4759870, 9519740, 19039480]

約数ペア:

[(1, 19039480), (2, 9519740), (4, 4759870), (5, 3807896), (8, 2379935), (10, 1903948), (20, 951974), (40, 475987), (401, 47480), (802, 23740), (1187, 16040), (1604, 11870), (2005, 9496), (2374, 8020), (3208, 5935), (4010, 4748)]