131572840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{67129}}^1$

素因数の和:67154

約数の個数: 48

約数和(自身を含む): 344376900

約数和(自身を除く): 212804060

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, 67129, 134258, 268516, 335645, 469903, 537032, 671290, 939806, 1342580, 1879612, 2349515, 2685160, 3289321, 3759224, 4699030, 6578642, 9398060, 13157284, 16446605, 18796120, 26314568, 32893210, 65786420, 131572840]

約数ペア:

[(1, 131572840), (2, 65786420), (4, 32893210), (5, 26314568), (7, 18796120), (8, 16446605), (10, 13157284), (14, 9398060), (20, 6578642), (28, 4699030), (35, 3759224), (40, 3289321), (49, 2685160), (56, 2349515), (70, 1879612), (98, 1342580), (140, 939806), (196, 671290), (245, 537032), (280, 469903), (392, 335645), (490, 268516), (980, 134258), (1960, 67129)]