20538112

素因数分解:

$2^8\times 7^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 47796896

約数和(自身を除く): 27258784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 157, 224, 256, 292, 314, 448, 511, 584, 628, 896, 1022, 1099, 1168, 1256, 1792, 2044, 2198, 2336, 2512, 4088, 4396, 4672, 5024, 8176, 8792, 9344, 10048, 11461, 16352, 17584, 18688, 20096, 22922, 32704, 35168, 40192, 45844, 65408, 70336, 80227, 91688, 130816, 140672, 160454, 183376, 281344, 320908, 366752, 641816, 733504, 1283632, 1467008, 2567264, 2934016, 5134528, 10269056, 20538112]

約数ペア:

[(1, 20538112), (2, 10269056), (4, 5134528), (7, 2934016), (8, 2567264), (14, 1467008), (16, 1283632), (28, 733504), (32, 641816), (56, 366752), (64, 320908), (73, 281344), (112, 183376), (128, 160454), (146, 140672), (157, 130816), (224, 91688), (256, 80227), (292, 70336), (314, 65408), (448, 45844), (511, 40192), (584, 35168), (628, 32704), (896, 22922), (1022, 20096), (1099, 18688), (1168, 17584), (1256, 16352), (1792, 11461), (2044, 10048), (2198, 9344), (2336, 8792), (2512, 8176), (4088, 5024), (4396, 4672)]