400148

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 827904

約数和(自身を除く): 427756

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 461, 868, 922, 1844, 3227, 6454, 12908, 14291, 28582, 57164, 100037, 200074, 400148]

約数ペア:

[(1, 400148), (2, 200074), (4, 100037), (7, 57164), (14, 28582), (28, 14291), (31, 12908), (62, 6454), (124, 3227), (217, 1844), (434, 922), (461, 868)]