20392720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11083}}^1$

素因数の和:11119

約数の個数: 40

約数和(自身を含む): 49478976

約数和(自身を除く): 29086256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11083, 22166, 44332, 55415, 88664, 110830, 177328, 221660, 254909, 443320, 509818, 886640, 1019636, 1274545, 2039272, 2549090, 4078544, 5098180, 10196360, 20392720]

約数ペア:

[(1, 20392720), (2, 10196360), (4, 5098180), (5, 4078544), (8, 2549090), (10, 2039272), (16, 1274545), (20, 1019636), (23, 886640), (40, 509818), (46, 443320), (80, 254909), (92, 221660), (115, 177328), (184, 110830), (230, 88664), (368, 55415), (460, 44332), (920, 22166), (1840, 11083)]