20532820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 54835200

約数和(自身を除く): 34302380

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 67, 70, 77, 110, 134, 140, 154, 199, 220, 268, 308, 335, 385, 398, 469, 670, 737, 770, 796, 938, 995, 1340, 1393, 1474, 1540, 1876, 1990, 2189, 2345, 2786, 2948, 3685, 3980, 4378, 4690, 5159, 5572, 6965, 7370, 8756, 9380, 10318, 10945, 13333, 13930, 14740, 15323, 20636, 21890, 25795, 26666, 27860, 30646, 43780, 51590, 53332, 61292, 66665, 76615, 93331, 103180, 133330, 146663, 153230, 186662, 266660, 293326, 306460, 373324, 466655, 586652, 733315, 933310, 1026641, 1466630, 1866620, 2053282, 2933260, 4106564, 5133205, 10266410, 20532820]

約数ペア:

[(1, 20532820), (2, 10266410), (4, 5133205), (5, 4106564), (7, 2933260), (10, 2053282), (11, 1866620), (14, 1466630), (20, 1026641), (22, 933310), (28, 733315), (35, 586652), (44, 466655), (55, 373324), (67, 306460), (70, 293326), (77, 266660), (110, 186662), (134, 153230), (140, 146663), (154, 133330), (199, 103180), (220, 93331), (268, 76615), (308, 66665), (335, 61292), (385, 53332), (398, 51590), (469, 43780), (670, 30646), (737, 27860), (770, 26666), (796, 25795), (938, 21890), (995, 20636), (1340, 15323), (1393, 14740), (1474, 13930), (1540, 13333), (1876, 10945), (1990, 10318), (2189, 9380), (2345, 8756), (2786, 7370), (2948, 6965), (3685, 5572), (3980, 5159), (4378, 4690)]