80723340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1619}}^1$

素因数の和:1911

約数の個数: 72

約数和(自身を含む): 245896560

約数和(自身を除く): 165173220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 277, 554, 831, 1108, 1385, 1619, 1662, 2493, 2770, 3238, 3324, 4155, 4857, 4986, 5540, 6476, 8095, 8310, 9714, 9972, 12465, 14571, 16190, 16620, 19428, 24285, 24930, 29142, 32380, 48570, 49860, 58284, 72855, 97140, 145710, 291420, 448463, 896926, 1345389, 1793852, 2242315, 2690778, 4036167, 4484630, 5381556, 6726945, 8072334, 8969260, 13453890, 16144668, 20180835, 26907780, 40361670, 80723340]

約数ペア:

[(1, 80723340), (2, 40361670), (3, 26907780), (4, 20180835), (5, 16144668), (6, 13453890), (9, 8969260), (10, 8072334), (12, 6726945), (15, 5381556), (18, 4484630), (20, 4036167), (30, 2690778), (36, 2242315), (45, 1793852), (60, 1345389), (90, 896926), (180, 448463), (277, 291420), (554, 145710), (831, 97140), (1108, 72855), (1385, 58284), (1619, 49860), (1662, 48570), (2493, 32380), (2770, 29142), (3238, 24930), (3324, 24285), (4155, 19428), (4857, 16620), (4986, 16190), (5540, 14571), (6476, 12465), (8095, 9972), (8310, 9714)]