31131660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{10589}}^1$

素因数の和:10615

約数の個数: 72

約数和(自身を含む): 101409840

約数和(自身を除く): 70278180

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 10589, 21178, 31767, 42356, 52945, 63534, 74123, 105890, 127068, 148246, 158835, 211780, 222369, 296492, 317670, 370615, 444738, 518861, 635340, 741230, 889476, 1037722, 1111845, 1482460, 1556583, 2075444, 2223690, 2594305, 3113166, 4447380, 5188610, 6226332, 7782915, 10377220, 15565830, 31131660]

約数ペア:

[(1, 31131660), (2, 15565830), (3, 10377220), (4, 7782915), (5, 6226332), (6, 5188610), (7, 4447380), (10, 3113166), (12, 2594305), (14, 2223690), (15, 2075444), (20, 1556583), (21, 1482460), (28, 1111845), (30, 1037722), (35, 889476), (42, 741230), (49, 635340), (60, 518861), (70, 444738), (84, 370615), (98, 317670), (105, 296492), (140, 222369), (147, 211780), (196, 158835), (210, 148246), (245, 127068), (294, 105890), (420, 74123), (490, 63534), (588, 52945), (735, 42356), (980, 31767), (1470, 21178), (2940, 10589)]