20711880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8219}}^1$

素因数の和:8243

約数の個数: 96

約数和(自身を含む): 76939200

約数和(自身を除く): 56227320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8219, 16438, 24657, 32876, 41095, 49314, 57533, 65752, 73971, 82190, 98628, 115066, 123285, 147942, 164380, 172599, 197256, 230132, 246570, 287665, 295884, 328760, 345198, 369855, 460264, 493140, 517797, 575330, 591768, 690396, 739710, 862995, 986280, 1035594, 1150660, 1380792, 1479420, 1725990, 2071188, 2301320, 2588985, 2958840, 3451980, 4142376, 5177970, 6903960, 10355940, 20711880]

約数ペア:

[(1, 20711880), (2, 10355940), (3, 6903960), (4, 5177970), (5, 4142376), (6, 3451980), (7, 2958840), (8, 2588985), (9, 2301320), (10, 2071188), (12, 1725990), (14, 1479420), (15, 1380792), (18, 1150660), (20, 1035594), (21, 986280), (24, 862995), (28, 739710), (30, 690396), (35, 591768), (36, 575330), (40, 517797), (42, 493140), (45, 460264), (56, 369855), (60, 345198), (63, 328760), (70, 295884), (72, 287665), (84, 246570), (90, 230132), (105, 197256), (120, 172599), (126, 164380), (140, 147942), (168, 123285), (180, 115066), (210, 98628), (252, 82190), (280, 73971), (315, 65752), (360, 57533), (420, 49314), (504, 41095), (630, 32876), (840, 24657), (1260, 16438), (2520, 8219)]