312103640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{39209}}^1$

素因数の和:39419

約数の個数: 32

約数和(自身を含む): 705780000

約数和(自身を除く): 393676360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 39209, 78418, 156836, 196045, 313672, 392090, 784180, 1568360, 7802591, 15605182, 31210364, 39012955, 62420728, 78025910, 156051820, 312103640]

約数ペア:

[(1, 312103640), (2, 156051820), (4, 78025910), (5, 62420728), (8, 39012955), (10, 31210364), (20, 15605182), (40, 7802591), (199, 1568360), (398, 784180), (796, 392090), (995, 313672), (1592, 196045), (1990, 156836), (3980, 78418), (7960, 39209)]