20203920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2551}}^1$

素因数の和:2581

約数の個数: 120

約数和(自身を含む): 74048832

約数和(自身を除く): 53844912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2551, 2640, 3960, 5102, 7653, 7920, 10204, 12755, 15306, 20408, 22959, 25510, 28061, 30612, 38265, 40816, 45918, 51020, 56122, 61224, 76530, 84183, 91836, 102040, 112244, 114795, 122448, 140305, 153060, 168366, 183672, 204080, 224488, 229590, 252549, 280610, 306120, 336732, 367344, 420915, 448976, 459180, 505098, 561220, 612240, 673464, 841830, 918360, 1010196, 1122440, 1262745, 1346928, 1683660, 1836720, 2020392, 2244880, 2525490, 3367320, 4040784, 5050980, 6734640, 10101960, 20203920]

約数ペア:

[(1, 20203920), (2, 10101960), (3, 6734640), (4, 5050980), (5, 4040784), (6, 3367320), (8, 2525490), (9, 2244880), (10, 2020392), (11, 1836720), (12, 1683660), (15, 1346928), (16, 1262745), (18, 1122440), (20, 1010196), (22, 918360), (24, 841830), (30, 673464), (33, 612240), (36, 561220), (40, 505098), (44, 459180), (45, 448976), (48, 420915), (55, 367344), (60, 336732), (66, 306120), (72, 280610), (80, 252549), (88, 229590), (90, 224488), (99, 204080), (110, 183672), (120, 168366), (132, 153060), (144, 140305), (165, 122448), (176, 114795), (180, 112244), (198, 102040), (220, 91836), (240, 84183), (264, 76530), (330, 61224), (360, 56122), (396, 51020), (440, 45918), (495, 40816), (528, 38265), (660, 30612), (720, 28061), (792, 25510), (880, 22959), (990, 20408), (1320, 15306), (1584, 12755), (1980, 10204), (2551, 7920), (2640, 7653), (3960, 5102)]