28400450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{3361}}^1$

素因数の和:3399

約数の個数: 36

約数和(自身を含む): 57217878

約数和(自身を除く): 28817428

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 3361, 4225, 6722, 8450, 16805, 33610, 43693, 84025, 87386, 168050, 218465, 436930, 568009, 1092325, 1136018, 2184650, 2840045, 5680090, 14200225, 28400450]

約数ペア:

[(1, 28400450), (2, 14200225), (5, 5680090), (10, 2840045), (13, 2184650), (25, 1136018), (26, 1092325), (50, 568009), (65, 436930), (130, 218465), (169, 168050), (325, 87386), (338, 84025), (650, 43693), (845, 33610), (1690, 16805), (3361, 8450), (4225, 6722)]