18627856

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{83}}^2$

素因数の和:200

約数の個数: 45

約数和(自身を含む): 39557829

約数和(自身を除く): 20929973

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 169, 208, 332, 338, 664, 676, 1079, 1328, 1352, 2158, 2704, 4316, 6889, 8632, 13778, 14027, 17264, 27556, 28054, 55112, 56108, 89557, 110224, 112216, 179114, 224432, 358228, 716456, 1164241, 1432912, 2328482, 4656964, 9313928, 18627856]

約数ペア:

[(1, 18627856), (2, 9313928), (4, 4656964), (8, 2328482), (13, 1432912), (16, 1164241), (26, 716456), (52, 358228), (83, 224432), (104, 179114), (166, 112216), (169, 110224), (208, 89557), (332, 56108), (338, 55112), (664, 28054), (676, 27556), (1079, 17264), (1328, 14027), (1352, 13778), (2158, 8632), (2704, 6889)]