31531920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^2$

素因数の和:297

約数の個数: 120

約数和(自身を含む): 112534464

約数和(自身を除く): 81002544

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 137, 140, 168, 210, 240, 274, 280, 336, 411, 420, 548, 560, 685, 822, 840, 959, 1096, 1370, 1644, 1680, 1918, 2055, 2192, 2740, 2877, 3288, 3836, 4110, 4795, 5480, 5754, 6576, 7672, 8220, 9590, 10960, 11508, 14385, 15344, 16440, 18769, 19180, 23016, 28770, 32880, 37538, 38360, 46032, 56307, 57540, 75076, 76720, 93845, 112614, 115080, 131383, 150152, 187690, 225228, 230160, 262766, 281535, 300304, 375380, 394149, 450456, 525532, 563070, 656915, 750760, 788298, 900912, 1051064, 1126140, 1313830, 1501520, 1576596, 1970745, 2102128, 2252280, 2627660, 3153192, 3941490, 4504560, 5255320, 6306384, 7882980, 10510640, 15765960, 31531920]

約数ペア:

[(1, 31531920), (2, 15765960), (3, 10510640), (4, 7882980), (5, 6306384), (6, 5255320), (7, 4504560), (8, 3941490), (10, 3153192), (12, 2627660), (14, 2252280), (15, 2102128), (16, 1970745), (20, 1576596), (21, 1501520), (24, 1313830), (28, 1126140), (30, 1051064), (35, 900912), (40, 788298), (42, 750760), (48, 656915), (56, 563070), (60, 525532), (70, 450456), (80, 394149), (84, 375380), (105, 300304), (112, 281535), (120, 262766), (137, 230160), (140, 225228), (168, 187690), (210, 150152), (240, 131383), (274, 115080), (280, 112614), (336, 93845), (411, 76720), (420, 75076), (548, 57540), (560, 56307), (685, 46032), (822, 38360), (840, 37538), (959, 32880), (1096, 28770), (1370, 23016), (1644, 19180), (1680, 18769), (1918, 16440), (2055, 15344), (2192, 14385), (2740, 11508), (2877, 10960), (3288, 9590), (3836, 8220), (4110, 7672), (4795, 6576), (5480, 5754)]