39158840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19979}}^1$

素因数の和:20004

約数の個数: 48

約数和(自身を含む): 102497400

約数和(自身を除く): 63338560

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, 19979, 39958, 79916, 99895, 139853, 159832, 199790, 279706, 399580, 559412, 699265, 799160, 978971, 1118824, 1398530, 1957942, 2797060, 3915884, 4894855, 5594120, 7831768, 9789710, 19579420, 39158840]

約数ペア:

[(1, 39158840), (2, 19579420), (4, 9789710), (5, 7831768), (7, 5594120), (8, 4894855), (10, 3915884), (14, 2797060), (20, 1957942), (28, 1398530), (35, 1118824), (40, 978971), (49, 799160), (56, 699265), (70, 559412), (98, 399580), (140, 279706), (196, 199790), (245, 159832), (280, 139853), (392, 99895), (490, 79916), (980, 39958), (1960, 19979)]