199945540

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{136949}}^1$

素因数の和:137031

約数の個数: 24

約数和(自身を含む): 425640600

約数和(自身を除く): 225695060

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 136949, 273898, 547796, 684745, 1369490, 2738980, 9997277, 19994554, 39989108, 49986385, 99972770, 199945540]

約数ペア:

[(1, 199945540), (2, 99972770), (4, 49986385), (5, 39989108), (10, 19994554), (20, 9997277), (73, 2738980), (146, 1369490), (292, 684745), (365, 547796), (730, 273898), (1460, 136949)]