40546780

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4129}}^1$

素因数の和:4629

約数の個数: 24

約数和(自身を含む): 85342320

約数和(自身を除く): 44795540

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4129, 4910, 8258, 9820, 16516, 20645, 41290, 82580, 2027339, 4054678, 8109356, 10136695, 20273390, 40546780]

約数ペア:

[(1, 40546780), (2, 20273390), (4, 10136695), (5, 8109356), (10, 4054678), (20, 2027339), (491, 82580), (982, 41290), (1964, 20645), (2455, 16516), (4129, 9820), (4910, 8258)]