20374620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 65856000

約数和(自身を除く): 45481380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 139, 140, 210, 278, 349, 417, 420, 556, 695, 698, 834, 973, 1047, 1390, 1396, 1668, 1745, 1946, 2085, 2094, 2443, 2780, 2919, 3490, 3892, 4170, 4188, 4865, 4886, 5235, 5838, 6980, 7329, 8340, 9730, 9772, 10470, 11676, 12215, 14595, 14658, 19460, 20940, 24430, 29190, 29316, 36645, 48511, 48860, 58380, 73290, 97022, 145533, 146580, 194044, 242555, 291066, 339577, 485110, 582132, 679154, 727665, 970220, 1018731, 1358308, 1455330, 1697885, 2037462, 2910660, 3395770, 4074924, 5093655, 6791540, 10187310, 20374620]

約数ペア:

[(1, 20374620), (2, 10187310), (3, 6791540), (4, 5093655), (5, 4074924), (6, 3395770), (7, 2910660), (10, 2037462), (12, 1697885), (14, 1455330), (15, 1358308), (20, 1018731), (21, 970220), (28, 727665), (30, 679154), (35, 582132), (42, 485110), (60, 339577), (70, 291066), (84, 242555), (105, 194044), (139, 146580), (140, 145533), (210, 97022), (278, 73290), (349, 58380), (417, 48860), (420, 48511), (556, 36645), (695, 29316), (698, 29190), (834, 24430), (973, 20940), (1047, 19460), (1390, 14658), (1396, 14595), (1668, 12215), (1745, 11676), (1946, 10470), (2085, 9772), (2094, 9730), (2443, 8340), (2780, 7329), (2919, 6980), (3490, 5838), (3892, 5235), (4170, 4886), (4188, 4865)]