78652840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40129}}^1$

素因数の和:40154

約数の個数: 48

約数和(自身を含む): 205866900

約数和(自身を除く): 127214060

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, 40129, 80258, 160516, 200645, 280903, 321032, 401290, 561806, 802580, 1123612, 1404515, 1605160, 1966321, 2247224, 2809030, 3932642, 5618060, 7865284, 9831605, 11236120, 15730568, 19663210, 39326420, 78652840]

約数ペア:

[(1, 78652840), (2, 39326420), (4, 19663210), (5, 15730568), (7, 11236120), (8, 9831605), (10, 7865284), (14, 5618060), (20, 3932642), (28, 2809030), (35, 2247224), (40, 1966321), (49, 1605160), (56, 1404515), (70, 1123612), (98, 802580), (140, 561806), (196, 401290), (245, 321032), (280, 280903), (392, 200645), (490, 160516), (980, 80258), (1960, 40129)]