20254696

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27645464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 131, 154, 251, 262, 308, 502, 524, 616, 917, 1004, 1048, 1441, 1757, 1834, 2008, 2761, 2882, 3514, 3668, 5522, 5764, 7028, 7336, 10087, 11044, 11528, 14056, 19327, 20174, 22088, 32881, 38654, 40348, 65762, 77308, 80696, 131524, 154616, 230167, 263048, 361691, 460334, 723382, 920668, 1446764, 1841336, 2531837, 2893528, 5063674, 10127348, 20254696]

約数ペア:

[(1, 20254696), (2, 10127348), (4, 5063674), (7, 2893528), (8, 2531837), (11, 1841336), (14, 1446764), (22, 920668), (28, 723382), (44, 460334), (56, 361691), (77, 263048), (88, 230167), (131, 154616), (154, 131524), (251, 80696), (262, 77308), (308, 65762), (502, 40348), (524, 38654), (616, 32881), (917, 22088), (1004, 20174), (1048, 19327), (1441, 14056), (1757, 11528), (1834, 11044), (2008, 10087), (2761, 7336), (2882, 7028), (3514, 5764), (3668, 5522)]