2439740

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:821

約数の個数: 24

約数和(自身を含む): 5157600

約数和(自身を除く): 2717860

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 613, 796, 995, 1226, 1990, 2452, 3065, 3980, 6130, 12260, 121987, 243974, 487948, 609935, 1219870, 2439740]

約数ペア:

[(1, 2439740), (2, 1219870), (4, 609935), (5, 487948), (10, 243974), (20, 121987), (199, 12260), (398, 6130), (613, 3980), (796, 3065), (995, 2452), (1226, 1990)]