16163980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 39029760

約数和(自身を除く): 22865780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 439, 526, 878, 1052, 1315, 1756, 1841, 2195, 2630, 3073, 3682, 4390, 5260, 6146, 7364, 8780, 9205, 12292, 15365, 18410, 30730, 36820, 61460, 115457, 230914, 461828, 577285, 808199, 1154570, 1616398, 2309140, 3232796, 4040995, 8081990, 16163980]

約数ペア:

[(1, 16163980), (2, 8081990), (4, 4040995), (5, 3232796), (7, 2309140), (10, 1616398), (14, 1154570), (20, 808199), (28, 577285), (35, 461828), (70, 230914), (140, 115457), (263, 61460), (439, 36820), (526, 30730), (878, 18410), (1052, 15365), (1315, 12292), (1756, 9205), (1841, 8780), (2195, 7364), (2630, 6146), (3073, 5260), (3682, 4390)]