2019439640

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{144659}}^1$

素因数の和:145019

約数の個数: 32

約数和(自身を含む): 4556790000

約数和(自身を除く): 2537350360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 144659, 289318, 578636, 723295, 1157272, 1446590, 2893180, 5786360, 50485991, 100971982, 201943964, 252429955, 403887928, 504859910, 1009719820, 2019439640]

約数ペア:

[(1, 2019439640), (2, 1009719820), (4, 504859910), (5, 403887928), (8, 252429955), (10, 201943964), (20, 100971982), (40, 50485991), (349, 5786360), (698, 2893180), (1396, 1446590), (1745, 1157272), (2792, 723295), (3490, 578636), (6980, 289318), (13960, 144659)]