20005568

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:361

約数の個数: 56

約数和(自身を含む): 43824144

約数和(自身を除く): 23818576

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 157, 176, 181, 314, 352, 362, 628, 704, 724, 1256, 1448, 1727, 1991, 2512, 2896, 3454, 3982, 5024, 5792, 6908, 7964, 10048, 11584, 13816, 15928, 27632, 28417, 31856, 55264, 56834, 63712, 110528, 113668, 127424, 227336, 312587, 454672, 625174, 909344, 1250348, 1818688, 2500696, 5001392, 10002784, 20005568]

約数ペア:

[(1, 20005568), (2, 10002784), (4, 5001392), (8, 2500696), (11, 1818688), (16, 1250348), (22, 909344), (32, 625174), (44, 454672), (64, 312587), (88, 227336), (157, 127424), (176, 113668), (181, 110528), (314, 63712), (352, 56834), (362, 55264), (628, 31856), (704, 28417), (724, 27632), (1256, 15928), (1448, 13816), (1727, 11584), (1991, 10048), (2512, 7964), (2896, 6908), (3454, 5792), (3982, 5024)]