210599720

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{10723}}^1$

素因数の和:11225

約数の個数: 32

約数和(自身を含む): 474858720

約数和(自身を除く): 264259000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 10723, 19640, 21446, 42892, 53615, 85784, 107230, 214460, 428920, 5264993, 10529986, 21059972, 26324965, 42119944, 52649930, 105299860, 210599720]

約数ペア:

[(1, 210599720), (2, 105299860), (4, 52649930), (5, 42119944), (8, 26324965), (10, 21059972), (20, 10529986), (40, 5264993), (491, 428920), (982, 214460), (1964, 107230), (2455, 85784), (3928, 53615), (4910, 42892), (9820, 21446), (10723, 19640)]