289290040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{556327}}^1$

素因数の和:556351

約数の個数: 32

約数和(自身を含む): 700973280

約数和(自身を除く): 411683240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 556327, 1112654, 2225308, 2781635, 4450616, 5563270, 7232251, 11126540, 14464502, 22253080, 28929004, 36161255, 57858008, 72322510, 144645020, 289290040]

約数ペア:

[(1, 289290040), (2, 144645020), (4, 72322510), (5, 57858008), (8, 36161255), (10, 28929004), (13, 22253080), (20, 14464502), (26, 11126540), (40, 7232251), (52, 5563270), (65, 4450616), (104, 2781635), (130, 2225308), (260, 1112654), (520, 556327)]