20112400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{653}}^1$

素因数の和:689

約数の個数: 120

約数和(自身を含む): 60335424

約数和(自身を除く): 40223024

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 175, 176, 200, 220, 275, 280, 308, 350, 385, 400, 440, 550, 560, 616, 653, 700, 770, 880, 1100, 1232, 1306, 1400, 1540, 1925, 2200, 2612, 2800, 3080, 3265, 3850, 4400, 4571, 5224, 6160, 6530, 7183, 7700, 9142, 10448, 13060, 14366, 15400, 16325, 18284, 22855, 26120, 28732, 30800, 32650, 35915, 36568, 45710, 50281, 52240, 57464, 65300, 71830, 73136, 91420, 100562, 114275, 114928, 130600, 143660, 179575, 182840, 201124, 228550, 251405, 261200, 287320, 359150, 365680, 402248, 457100, 502810, 574640, 718300, 804496, 914200, 1005620, 1257025, 1436600, 1828400, 2011240, 2514050, 2873200, 4022480, 5028100, 10056200, 20112400]

約数ペア:

[(1, 20112400), (2, 10056200), (4, 5028100), (5, 4022480), (7, 2873200), (8, 2514050), (10, 2011240), (11, 1828400), (14, 1436600), (16, 1257025), (20, 1005620), (22, 914200), (25, 804496), (28, 718300), (35, 574640), (40, 502810), (44, 457100), (50, 402248), (55, 365680), (56, 359150), (70, 287320), (77, 261200), (80, 251405), (88, 228550), (100, 201124), (110, 182840), (112, 179575), (140, 143660), (154, 130600), (175, 114928), (176, 114275), (200, 100562), (220, 91420), (275, 73136), (280, 71830), (308, 65300), (350, 57464), (385, 52240), (400, 50281), (440, 45710), (550, 36568), (560, 35915), (616, 32650), (653, 30800), (700, 28732), (770, 26120), (880, 22855), (1100, 18284), (1232, 16325), (1306, 15400), (1400, 14366), (1540, 13060), (1925, 10448), (2200, 9142), (2612, 7700), (2800, 7183), (3080, 6530), (3265, 6160), (3850, 5224), (4400, 4571)]