20178060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 45140340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 107, 140, 210, 214, 321, 420, 428, 449, 535, 642, 749, 898, 1070, 1284, 1347, 1498, 1605, 1796, 2140, 2245, 2247, 2694, 2996, 3143, 3210, 3745, 4490, 4494, 5388, 6286, 6420, 6735, 7490, 8980, 8988, 9429, 11235, 12572, 13470, 14980, 15715, 18858, 22470, 26940, 31430, 37716, 44940, 47145, 48043, 62860, 94290, 96086, 144129, 188580, 192172, 240215, 288258, 336301, 480430, 576516, 672602, 720645, 960860, 1008903, 1345204, 1441290, 1681505, 2017806, 2882580, 3363010, 4035612, 5044515, 6726020, 10089030, 20178060]

約数ペア:

[(1, 20178060), (2, 10089030), (3, 6726020), (4, 5044515), (5, 4035612), (6, 3363010), (7, 2882580), (10, 2017806), (12, 1681505), (14, 1441290), (15, 1345204), (20, 1008903), (21, 960860), (28, 720645), (30, 672602), (35, 576516), (42, 480430), (60, 336301), (70, 288258), (84, 240215), (105, 192172), (107, 188580), (140, 144129), (210, 96086), (214, 94290), (321, 62860), (420, 48043), (428, 47145), (449, 44940), (535, 37716), (642, 31430), (749, 26940), (898, 22470), (1070, 18858), (1284, 15715), (1347, 14980), (1498, 13470), (1605, 12572), (1796, 11235), (2140, 9429), (2245, 8988), (2247, 8980), (2694, 7490), (2996, 6735), (3143, 6420), (3210, 6286), (3745, 5388), (4490, 4494)]