30389360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19993}}^1$

素因数の和:20025

約数の個数: 40

約数和(自身を含む): 74377680

約数和(自身を除く): 43988320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19993, 39986, 79972, 99965, 159944, 199930, 319888, 379867, 399860, 759734, 799720, 1519468, 1599440, 1899335, 3038936, 3798670, 6077872, 7597340, 15194680, 30389360]

約数ペア:

[(1, 30389360), (2, 15194680), (4, 7597340), (5, 6077872), (8, 3798670), (10, 3038936), (16, 1899335), (19, 1599440), (20, 1519468), (38, 799720), (40, 759734), (76, 399860), (80, 379867), (95, 319888), (152, 199930), (190, 159944), (304, 99965), (380, 79972), (760, 39986), (1520, 19993)]