18507720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2003}}^1$

素因数の和:2035

約数の個数: 128

約数和(自身を含む): 69258240

約数和(自身を除く): 50750520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2003, 2310, 3080, 4006, 4620, 6009, 8012, 9240, 10015, 12018, 14021, 16024, 20030, 22033, 24036, 28042, 30045, 40060, 42063, 44066, 48072, 56084, 60090, 66099, 70105, 80120, 84126, 88132, 110165, 112168, 120180, 132198, 140210, 154231, 168252, 176264, 210315, 220330, 240360, 264396, 280420, 308462, 330495, 336504, 420630, 440660, 462693, 528792, 560840, 616924, 660990, 771155, 841260, 881320, 925386, 1233848, 1321980, 1542310, 1682520, 1850772, 2313465, 2643960, 3084620, 3701544, 4626930, 6169240, 9253860, 18507720]

約数ペア:

[(1, 18507720), (2, 9253860), (3, 6169240), (4, 4626930), (5, 3701544), (6, 3084620), (7, 2643960), (8, 2313465), (10, 1850772), (11, 1682520), (12, 1542310), (14, 1321980), (15, 1233848), (20, 925386), (21, 881320), (22, 841260), (24, 771155), (28, 660990), (30, 616924), (33, 560840), (35, 528792), (40, 462693), (42, 440660), (44, 420630), (55, 336504), (56, 330495), (60, 308462), (66, 280420), (70, 264396), (77, 240360), (84, 220330), (88, 210315), (105, 176264), (110, 168252), (120, 154231), (132, 140210), (140, 132198), (154, 120180), (165, 112168), (168, 110165), (210, 88132), (220, 84126), (231, 80120), (264, 70105), (280, 66099), (308, 60090), (330, 56084), (385, 48072), (420, 44066), (440, 42063), (462, 40060), (616, 30045), (660, 28042), (770, 24036), (840, 22033), (924, 20030), (1155, 16024), (1320, 14021), (1540, 12018), (1848, 10015), (2003, 9240), (2310, 8012), (3080, 6009), (4006, 4620)]