20632840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 49714560

約数和(自身を除く): 29081720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 547, 820, 920, 943, 1094, 1640, 1886, 2188, 2735, 3772, 4376, 4715, 5470, 7544, 9430, 10940, 12581, 18860, 21880, 22427, 25162, 37720, 44854, 50324, 62905, 89708, 100648, 112135, 125810, 179416, 224270, 251620, 448540, 503240, 515821, 897080, 1031642, 2063284, 2579105, 4126568, 5158210, 10316420, 20632840]

約数ペア:

[(1, 20632840), (2, 10316420), (4, 5158210), (5, 4126568), (8, 2579105), (10, 2063284), (20, 1031642), (23, 897080), (40, 515821), (41, 503240), (46, 448540), (82, 251620), (92, 224270), (115, 179416), (164, 125810), (184, 112135), (205, 100648), (230, 89708), (328, 62905), (410, 50324), (460, 44854), (547, 37720), (820, 25162), (920, 22427), (943, 21880), (1094, 18860), (1640, 12581), (1886, 10940), (2188, 9430), (2735, 7544), (3772, 5470), (4376, 4715)]