290464420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{468491}}^1$

素因数の和:468531

約数の個数: 24

約数和(自身を含む): 629653248

約数和(自身を除く): 339188828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 468491, 936982, 1873964, 2342455, 4684910, 9369820, 14523221, 29046442, 58092884, 72616105, 145232210, 290464420]

約数ペア:

[(1, 290464420), (2, 145232210), (4, 72616105), (5, 58092884), (10, 29046442), (20, 14523221), (31, 9369820), (62, 4684910), (124, 2342455), (155, 1873964), (310, 936982), (620, 468491)]