20430124

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 45045504

約数和(自身を除く): 24615380

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 121, 143, 187, 191, 221, 242, 286, 374, 382, 442, 484, 572, 748, 764, 884, 1573, 2057, 2101, 2431, 2483, 3146, 3247, 4114, 4202, 4862, 4966, 6292, 6494, 8228, 8404, 9724, 9932, 12988, 23111, 26741, 27313, 35717, 42211, 46222, 53482, 54626, 71434, 84422, 92444, 106964, 109252, 142868, 168844, 300443, 392887, 464321, 600886, 785774, 928642, 1201772, 1571548, 1857284, 5107531, 10215062, 20430124]

約数ペア:

[(1, 20430124), (2, 10215062), (4, 5107531), (11, 1857284), (13, 1571548), (17, 1201772), (22, 928642), (26, 785774), (34, 600886), (44, 464321), (52, 392887), (68, 300443), (121, 168844), (143, 142868), (187, 109252), (191, 106964), (221, 92444), (242, 84422), (286, 71434), (374, 54626), (382, 53482), (442, 46222), (484, 42211), (572, 35717), (748, 27313), (764, 26741), (884, 23111), (1573, 12988), (2057, 9932), (2101, 9724), (2431, 8404), (2483, 8228), (3146, 6494), (3247, 6292), (4114, 4966), (4202, 4862)]