6940220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 16873920

約数和(自身を除く): 9933700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 557, 623, 890, 1114, 1246, 1780, 2228, 2492, 2785, 3115, 3899, 5570, 6230, 7798, 11140, 12460, 15596, 19495, 38990, 49573, 77980, 99146, 198292, 247865, 347011, 495730, 694022, 991460, 1388044, 1735055, 3470110, 6940220]

約数ペア:

[(1, 6940220), (2, 3470110), (4, 1735055), (5, 1388044), (7, 991460), (10, 694022), (14, 495730), (20, 347011), (28, 247865), (35, 198292), (70, 99146), (89, 77980), (140, 49573), (178, 38990), (356, 19495), (445, 15596), (557, 12460), (623, 11140), (890, 7798), (1114, 6230), (1246, 5570), (1780, 3899), (2228, 3115), (2492, 2785)]