16439380

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7541}}^1$

素因数の和:7659

約数の個数: 24

約数和(自身を含む): 34844040

約数和(自身を除く): 18404660

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 7541, 15082, 30164, 37705, 75410, 150820, 821969, 1643938, 3287876, 4109845, 8219690, 16439380]

約数ペア:

[(1, 16439380), (2, 8219690), (4, 4109845), (5, 3287876), (10, 1643938), (20, 821969), (109, 150820), (218, 75410), (436, 37705), (545, 30164), (1090, 15082), (2180, 7541)]