20467328

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 27121792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 431, 448, 742, 848, 862, 896, 1484, 1696, 1724, 2968, 3017, 3392, 3448, 5936, 6034, 6784, 6896, 11872, 12068, 13792, 22843, 23744, 24136, 27584, 45686, 47488, 48272, 55168, 91372, 96544, 159901, 182744, 193088, 319802, 365488, 386176, 639604, 730976, 1279208, 1461952, 2558416, 2923904, 5116832, 10233664, 20467328]

約数ペア:

[(1, 20467328), (2, 10233664), (4, 5116832), (7, 2923904), (8, 2558416), (14, 1461952), (16, 1279208), (28, 730976), (32, 639604), (53, 386176), (56, 365488), (64, 319802), (106, 193088), (112, 182744), (128, 159901), (212, 96544), (224, 91372), (371, 55168), (424, 48272), (431, 47488), (448, 45686), (742, 27584), (848, 24136), (862, 23744), (896, 22843), (1484, 13792), (1696, 12068), (1724, 11872), (2968, 6896), (3017, 6784), (3392, 6034), (3448, 5936)]