127640940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{303907}}^1$

素因数の和:303926

約数の個数: 48

約数和(自身を含む): 408452352

約数和(自身を除く): 280811412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 303907, 607814, 911721, 1215628, 1519535, 1823442, 2127349, 3039070, 3646884, 4254698, 4558605, 6078140, 6382047, 8509396, 9117210, 10636745, 12764094, 18234420, 21273490, 25528188, 31910235, 42546980, 63820470, 127640940]

約数ペア:

[(1, 127640940), (2, 63820470), (3, 42546980), (4, 31910235), (5, 25528188), (6, 21273490), (7, 18234420), (10, 12764094), (12, 10636745), (14, 9117210), (15, 8509396), (20, 6382047), (21, 6078140), (28, 4558605), (30, 4254698), (35, 3646884), (42, 3039070), (60, 2127349), (70, 1823442), (84, 1519535), (105, 1215628), (140, 911721), (210, 607814), (420, 303907)]