17888920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9127}}^1$

素因数の和:9152

約数の個数: 48

約数和(自身を含む): 46826640

約数和(自身を除く): 28937720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9127, 18254, 36508, 45635, 63889, 73016, 91270, 127778, 182540, 255556, 319445, 365080, 447223, 511112, 638890, 894446, 1277780, 1788892, 2236115, 2555560, 3577784, 4472230, 8944460, 17888920]

約数ペア:

[(1, 17888920), (2, 8944460), (4, 4472230), (5, 3577784), (7, 2555560), (8, 2236115), (10, 1788892), (14, 1277780), (20, 894446), (28, 638890), (35, 511112), (40, 447223), (49, 365080), (56, 319445), (70, 255556), (98, 182540), (140, 127778), (196, 91270), (245, 73016), (280, 63889), (392, 45635), (490, 36508), (980, 18254), (1960, 9127)]