78513460

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19727}}^1$

素因数の和:19935

約数の個数: 24

約数和(自身を含む): 165715200

約数和(自身を除く): 87201740

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 19727, 39454, 78908, 98635, 197270, 394540, 3925673, 7851346, 15702692, 19628365, 39256730, 78513460]

約数ペア:

[(1, 78513460), (2, 39256730), (4, 19628365), (5, 15702692), (10, 7851346), (20, 3925673), (199, 394540), (398, 197270), (796, 98635), (995, 78908), (1990, 39454), (3980, 19727)]