61205380

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{6971}}^1$

素因数の和:7419

約数の個数: 24

約数和(自身を含む): 128842560

約数和(自身を除く): 67637180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 6971, 8780, 13942, 27884, 34855, 69710, 139420, 3060269, 6120538, 12241076, 15301345, 30602690, 61205380]

約数ペア:

[(1, 61205380), (2, 30602690), (4, 15301345), (5, 12241076), (10, 6120538), (20, 3060269), (439, 139420), (878, 69710), (1756, 34855), (2195, 27884), (4390, 13942), (6971, 8780)]