289331380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{85601}}^1$

素因数の和:85636

約数の個数: 36

約数和(自身を含む): 657936972

約数和(自身を除く): 368605592

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 85601, 171202, 342404, 428005, 856010, 1112813, 1712020, 2225626, 4451252, 5564065, 11128130, 14466569, 22256260, 28933138, 57866276, 72332845, 144665690, 289331380]

約数ペア:

[(1, 289331380), (2, 144665690), (4, 72332845), (5, 57866276), (10, 28933138), (13, 22256260), (20, 14466569), (26, 11128130), (52, 5564065), (65, 4451252), (130, 2225626), (169, 1712020), (260, 1112813), (338, 856010), (676, 428005), (845, 342404), (1690, 171202), (3380, 85601)]