28319330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{1289}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 55263600

約数和(自身を除く): 26944270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1289, 1690, 2197, 2578, 4394, 6445, 10985, 12890, 16757, 21970, 33514, 83785, 167570, 217841, 435682, 1089205, 2178410, 2831933, 5663866, 14159665, 28319330]

約数ペア:

[(1, 28319330), (2, 14159665), (5, 5663866), (10, 2831933), (13, 2178410), (26, 1089205), (65, 435682), (130, 217841), (169, 167570), (338, 83785), (845, 33514), (1289, 21970), (1690, 16757), (2197, 12890), (2578, 10985), (4394, 6445)]