72860920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3851}}^1$

素因数の和:3916

約数の個数: 64

約数和(自身を含む): 183047040

約数和(自身を除く): 110186120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 3851, 4730, 7702, 9460, 15404, 18920, 19255, 30808, 38510, 42361, 77020, 84722, 154040, 165593, 169444, 211805, 331186, 338888, 423610, 662372, 827965, 847220, 1324744, 1655930, 1694440, 1821523, 3311860, 3643046, 6623720, 7286092, 9107615, 14572184, 18215230, 36430460, 72860920]

約数ペア:

[(1, 72860920), (2, 36430460), (4, 18215230), (5, 14572184), (8, 9107615), (10, 7286092), (11, 6623720), (20, 3643046), (22, 3311860), (40, 1821523), (43, 1694440), (44, 1655930), (55, 1324744), (86, 847220), (88, 827965), (110, 662372), (172, 423610), (215, 338888), (220, 331186), (344, 211805), (430, 169444), (440, 165593), (473, 154040), (860, 84722), (946, 77020), (1720, 42361), (1892, 38510), (2365, 30808), (3784, 19255), (3851, 18920), (4730, 15404), (7702, 9460)]