28971880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103471}}^1$

素因数の和:103489

約数の個数: 32

約数和(自身を含む): 74499840

約数和(自身を除く): 45527960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 103471, 206942, 413884, 517355, 724297, 827768, 1034710, 1448594, 2069420, 2897188, 3621485, 4138840, 5794376, 7242970, 14485940, 28971880]

約数ペア:

[(1, 28971880), (2, 14485940), (4, 7242970), (5, 5794376), (7, 4138840), (8, 3621485), (10, 2897188), (14, 2069420), (20, 1448594), (28, 1034710), (35, 827768), (40, 724297), (56, 517355), (70, 413884), (140, 206942), (280, 103471)]