307907560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{70621}}^1$

素因数の和:70741

約数の個数: 32

約数和(自身を含む): 699157800

約数和(自身を除く): 391250240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 70621, 141242, 282484, 353105, 564968, 706210, 1412420, 2824840, 7697689, 15395378, 30790756, 38488445, 61581512, 76976890, 153953780, 307907560]

約数ペア:

[(1, 307907560), (2, 153953780), (4, 76976890), (5, 61581512), (8, 38488445), (10, 30790756), (20, 15395378), (40, 7697689), (109, 2824840), (218, 1412420), (436, 706210), (545, 564968), (872, 353105), (1090, 282484), (2180, 141242), (4360, 70621)]