8212120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 21369600

約数和(自身を除く): 13157480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 211, 278, 280, 422, 556, 695, 844, 973, 1055, 1112, 1390, 1477, 1688, 1946, 2110, 2780, 2954, 3892, 4220, 4865, 5560, 5908, 7385, 7784, 8440, 9730, 11816, 14770, 19460, 29329, 29540, 38920, 58658, 59080, 117316, 146645, 205303, 234632, 293290, 410606, 586580, 821212, 1026515, 1173160, 1642424, 2053030, 4106060, 8212120]

約数ペア:

[(1, 8212120), (2, 4106060), (4, 2053030), (5, 1642424), (7, 1173160), (8, 1026515), (10, 821212), (14, 586580), (20, 410606), (28, 293290), (35, 234632), (40, 205303), (56, 146645), (70, 117316), (139, 59080), (140, 58658), (211, 38920), (278, 29540), (280, 29329), (422, 19460), (556, 14770), (695, 11816), (844, 9730), (973, 8440), (1055, 7784), (1112, 7385), (1390, 5908), (1477, 5560), (1688, 4865), (1946, 4220), (2110, 3892), (2780, 2954)]