199943720

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{39359}}^1$

素因数の和:39497

約数の個数: 32

約数和(自身を含む): 453427200

約数和(自身を除く): 253483480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 39359, 78718, 157436, 196795, 314872, 393590, 787180, 1574360, 4998593, 9997186, 19994372, 24992965, 39988744, 49985930, 99971860, 199943720]

約数ペア:

[(1, 199943720), (2, 99971860), (4, 49985930), (5, 39988744), (8, 24992965), (10, 19994372), (20, 9997186), (40, 4998593), (127, 1574360), (254, 787180), (508, 393590), (635, 314872), (1016, 196795), (1270, 157436), (2540, 78718), (5080, 39359)]