20085208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 44946720

約数和(自身を除く): 24861512

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 97, 104, 143, 181, 194, 286, 362, 388, 572, 724, 776, 1067, 1144, 1261, 1448, 1991, 2134, 2353, 2522, 3982, 4268, 4706, 5044, 7964, 8536, 9412, 10088, 13871, 15928, 17557, 18824, 25883, 27742, 35114, 51766, 55484, 70228, 103532, 110968, 140456, 193127, 207064, 228241, 386254, 456482, 772508, 912964, 1545016, 1825928, 2510651, 5021302, 10042604, 20085208]

約数ペア:

[(1, 20085208), (2, 10042604), (4, 5021302), (8, 2510651), (11, 1825928), (13, 1545016), (22, 912964), (26, 772508), (44, 456482), (52, 386254), (88, 228241), (97, 207064), (104, 193127), (143, 140456), (181, 110968), (194, 103532), (286, 70228), (362, 55484), (388, 51766), (572, 35114), (724, 27742), (776, 25883), (1067, 18824), (1144, 17557), (1261, 15928), (1448, 13871), (1991, 10088), (2134, 9412), (2353, 8536), (2522, 7964), (3982, 5044), (4268, 4706)]