281765680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71879}}^1$

素因数の和:71906

約数の個数: 60

約数和(自身を含む): 762071760

約数和(自身を除く): 480306080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 71879, 143758, 287516, 359395, 503153, 575032, 718790, 1006306, 1150064, 1437580, 2012612, 2515765, 2875160, 3522071, 4025224, 5031530, 5750320, 7044142, 8050448, 10063060, 14088284, 17610355, 20126120, 28176568, 35220710, 40252240, 56353136, 70441420, 140882840, 281765680]

約数ペア:

[(1, 281765680), (2, 140882840), (4, 70441420), (5, 56353136), (7, 40252240), (8, 35220710), (10, 28176568), (14, 20126120), (16, 17610355), (20, 14088284), (28, 10063060), (35, 8050448), (40, 7044142), (49, 5750320), (56, 5031530), (70, 4025224), (80, 3522071), (98, 2875160), (112, 2515765), (140, 2012612), (196, 1437580), (245, 1150064), (280, 1006306), (392, 718790), (490, 575032), (560, 503153), (784, 359395), (980, 287516), (1960, 143758), (3920, 71879)]