885431320

素因数分解:

$2^3\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{20707}}^1$

素因数の和:21787

約数の個数: 32

約数和(自身を含む): 1994180400

約数和(自身を除く): 1108749080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1069, 2138, 4276, 5345, 8552, 10690, 20707, 21380, 41414, 42760, 82828, 103535, 165656, 207070, 414140, 828280, 22135783, 44271566, 88543132, 110678915, 177086264, 221357830, 442715660, 885431320]

約数ペア:

[(1, 885431320), (2, 442715660), (4, 221357830), (5, 177086264), (8, 110678915), (10, 88543132), (20, 44271566), (40, 22135783), (1069, 828280), (2138, 414140), (4276, 207070), (5345, 165656), (8552, 103535), (10690, 82828), (20707, 42760), (21380, 41414)]