20811320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22621}}^1$

素因数の和:22655

約数の個数: 32

約数和(自身を含む): 48863520

約数和(自身を除く): 28052200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22621, 45242, 90484, 113105, 180968, 226210, 452420, 520283, 904840, 1040566, 2081132, 2601415, 4162264, 5202830, 10405660, 20811320]

約数ペア:

[(1, 20811320), (2, 10405660), (4, 5202830), (5, 4162264), (8, 2601415), (10, 2081132), (20, 1040566), (23, 904840), (40, 520283), (46, 452420), (92, 226210), (115, 180968), (184, 113105), (230, 90484), (460, 45242), (920, 22621)]