19577620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4919}}^1$

素因数の和:5127

約数の個数: 24

約数和(自身を含む): 41328000

約数和(自身を除く): 21750380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4919, 9838, 19676, 24595, 49190, 98380, 978881, 1957762, 3915524, 4894405, 9788810, 19577620]

約数ペア:

[(1, 19577620), (2, 9788810), (4, 4894405), (5, 3915524), (10, 1957762), (20, 978881), (199, 98380), (398, 49190), (796, 24595), (995, 19676), (1990, 9838), (3980, 4919)]