78840640

素因数分解:

$2^6\times 5^1\times {\mathrm{433}}^1\times {\mathrm{569}}^1$

素因数の和:1019

約数の個数: 56

約数和(自身を含む): 188503560

約数和(自身を除く): 109662920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 433, 569, 866, 1138, 1732, 2165, 2276, 2845, 3464, 4330, 4552, 5690, 6928, 8660, 9104, 11380, 13856, 17320, 18208, 22760, 27712, 34640, 36416, 45520, 69280, 91040, 138560, 182080, 246377, 492754, 985508, 1231885, 1971016, 2463770, 3942032, 4927540, 7884064, 9855080, 15768128, 19710160, 39420320, 78840640]

約数ペア:

[(1, 78840640), (2, 39420320), (4, 19710160), (5, 15768128), (8, 9855080), (10, 7884064), (16, 4927540), (20, 3942032), (32, 2463770), (40, 1971016), (64, 1231885), (80, 985508), (160, 492754), (320, 246377), (433, 182080), (569, 138560), (866, 91040), (1138, 69280), (1732, 45520), (2165, 36416), (2276, 34640), (2845, 27712), (3464, 22760), (4330, 18208), (4552, 17320), (5690, 13856), (6928, 11380), (8660, 9104)]