799900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:454

約数の個数: 36

約数和(自身を含む): 1831480

約数和(自身を除く): 1031580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 421, 475, 842, 950, 1684, 1900, 2105, 4210, 7999, 8420, 10525, 15998, 21050, 31996, 39995, 42100, 79990, 159980, 199975, 399950, 799900]

約数ペア:

[(1, 799900), (2, 399950), (4, 199975), (5, 159980), (10, 79990), (19, 42100), (20, 39995), (25, 31996), (38, 21050), (50, 15998), (76, 10525), (95, 8420), (100, 7999), (190, 4210), (380, 2105), (421, 1900), (475, 1684), (842, 950)]