29780920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{57271}}^1$

素因数の和:57295

約数の個数: 32

約数和(自身を含む): 72162720

約数和(自身を除く): 42381800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 57271, 114542, 229084, 286355, 458168, 572710, 744523, 1145420, 1489046, 2290840, 2978092, 3722615, 5956184, 7445230, 14890460, 29780920]

約数ペア:

[(1, 29780920), (2, 14890460), (4, 7445230), (5, 5956184), (8, 3722615), (10, 2978092), (13, 2290840), (20, 1489046), (26, 1145420), (40, 744523), (52, 572710), (65, 458168), (104, 286355), (130, 229084), (260, 114542), (520, 57271)]