134440420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1987}}^1$

素因数の和:2212

約数の個数: 48

約数和(自身を含む): 300585600

約数和(自身を除く): 166145180

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1987, 1990, 3383, 3974, 3980, 6766, 7948, 9935, 13532, 16915, 19870, 33779, 33830, 39740, 67558, 67660, 135116, 168895, 337790, 395413, 675580, 790826, 1581652, 1977065, 3954130, 6722021, 7908260, 13444042, 26888084, 33610105, 67220210, 134440420]

約数ペア:

[(1, 134440420), (2, 67220210), (4, 33610105), (5, 26888084), (10, 13444042), (17, 7908260), (20, 6722021), (34, 3954130), (68, 1977065), (85, 1581652), (170, 790826), (199, 675580), (340, 395413), (398, 337790), (796, 168895), (995, 135116), (1987, 67660), (1990, 67558), (3383, 39740), (3974, 33830), (3980, 33779), (6766, 19870), (7948, 16915), (9935, 13532)]