30931460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{220939}}^1$

素因数の和:220955

約数の個数: 24

約数和(自身を含む): 74235840

約数和(自身を除く): 43304380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 220939, 441878, 883756, 1104695, 1546573, 2209390, 3093146, 4418780, 6186292, 7732865, 15465730, 30931460]

約数ペア:

[(1, 30931460), (2, 15465730), (4, 7732865), (5, 6186292), (7, 4418780), (10, 3093146), (14, 2209390), (20, 1546573), (28, 1104695), (35, 883756), (70, 441878), (140, 220939)]