20281888

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 43956864

約数和(自身を除く): 23674976

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 157, 176, 314, 352, 367, 628, 734, 1256, 1468, 1727, 2512, 2936, 3454, 4037, 5024, 5872, 6908, 8074, 11744, 13816, 16148, 27632, 32296, 55264, 57619, 64592, 115238, 129184, 230476, 460952, 633809, 921904, 1267618, 1843808, 2535236, 5070472, 10140944, 20281888]

約数ペア:

[(1, 20281888), (2, 10140944), (4, 5070472), (8, 2535236), (11, 1843808), (16, 1267618), (22, 921904), (32, 633809), (44, 460952), (88, 230476), (157, 129184), (176, 115238), (314, 64592), (352, 57619), (367, 55264), (628, 32296), (734, 27632), (1256, 16148), (1468, 13816), (1727, 11744), (2512, 8074), (2936, 6908), (3454, 5872), (4037, 5024)]