20481464

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2063}}^1$

素因数の和:2159

約数の個数: 32

約数和(自身を含む): 41238720

約数和(自身を除く): 20757256

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2063, 2482, 4126, 4964, 8252, 9928, 16504, 35071, 70142, 140284, 150599, 280568, 301198, 602396, 1204792, 2560183, 5120366, 10240732, 20481464]

約数ペア:

[(1, 20481464), (2, 10240732), (4, 5120366), (8, 2560183), (17, 1204792), (34, 602396), (68, 301198), (73, 280568), (136, 150599), (146, 140284), (292, 70142), (584, 35071), (1241, 16504), (2063, 9928), (2482, 8252), (4126, 4964)]