388804940

素因数分解:

$2^2\times 5^1\times {\mathrm{953}}^1\times {\mathrm{20399}}^1$

素因数の和:21361

約数の個数: 24

約数和(自身を含む): 817387200

約数和(自身を除く): 428582260

約数列:

[1, 2, 4, 5, 10, 20, 953, 1906, 3812, 4765, 9530, 19060, 20399, 40798, 81596, 101995, 203990, 407980, 19440247, 38880494, 77760988, 97201235, 194402470, 388804940]

約数ペア:

[(1, 388804940), (2, 194402470), (4, 97201235), (5, 77760988), (10, 38880494), (20, 19440247), (953, 407980), (1906, 203990), (3812, 101995), (4765, 81596), (9530, 40798), (19060, 20399)]