309023720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{70877}}^1$

素因数の和:70997

約数の個数: 32

約数和(自身を含む): 701692200

約数和(自身を除く): 392668480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 70877, 141754, 283508, 354385, 567016, 708770, 1417540, 2835080, 7725593, 15451186, 30902372, 38627965, 61804744, 77255930, 154511860, 309023720]

約数ペア:

[(1, 309023720), (2, 154511860), (4, 77255930), (5, 61804744), (8, 38627965), (10, 30902372), (20, 15451186), (40, 7725593), (109, 2835080), (218, 1417540), (436, 708770), (545, 567016), (872, 354385), (1090, 283508), (2180, 141754), (4360, 70877)]