319960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 759600

約数和(自身を除く): 439640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 421, 760, 842, 1684, 2105, 3368, 4210, 7999, 8420, 15998, 16840, 31996, 39995, 63992, 79990, 159980, 319960]

約数ペア:

[(1, 319960), (2, 159980), (4, 79990), (5, 63992), (8, 39995), (10, 31996), (19, 16840), (20, 15998), (38, 8420), (40, 7999), (76, 4210), (95, 3368), (152, 2105), (190, 1684), (380, 842), (421, 760)]