80849020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82499}}^1$

素因数の和:82522

約数の個数: 36

約数和(自身を含む): 197505000

約数和(自身を除く): 116655980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82499, 164998, 329996, 412495, 577493, 824990, 1154986, 1649980, 2309972, 2887465, 4042451, 5774930, 8084902, 11549860, 16169804, 20212255, 40424510, 80849020]

約数ペア:

[(1, 80849020), (2, 40424510), (4, 20212255), (5, 16169804), (7, 11549860), (10, 8084902), (14, 5774930), (20, 4042451), (28, 2887465), (35, 2309972), (49, 1649980), (70, 1154986), (98, 824990), (140, 577493), (196, 412495), (245, 329996), (490, 164998), (980, 82499)]