318685880

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109139}}^1$

素因数の和:109223

約数の個数: 32

約数和(自身を含む): 726872400

約数和(自身を除く): 408186520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 109139, 218278, 436556, 545695, 873112, 1091390, 2182780, 4365560, 7967147, 15934294, 31868588, 39835735, 63737176, 79671470, 159342940, 318685880]

約数ペア:

[(1, 318685880), (2, 159342940), (4, 79671470), (5, 63737176), (8, 39835735), (10, 31868588), (20, 15934294), (40, 7967147), (73, 4365560), (146, 2182780), (292, 1091390), (365, 873112), (584, 545695), (730, 436556), (1460, 218278), (2920, 109139)]