19828620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15737}}^1$

素因数の和:15759

約数の個数: 72

約数和(自身を含む): 68743584

約数和(自身を除く): 48914964

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15737, 31474, 47211, 62948, 78685, 94422, 110159, 141633, 157370, 188844, 220318, 236055, 283266, 314740, 330477, 440636, 472110, 550795, 566532, 660954, 708165, 944220, 991431, 1101590, 1321908, 1416330, 1652385, 1982862, 2203180, 2832660, 3304770, 3965724, 4957155, 6609540, 9914310, 19828620]

約数ペア:

[(1, 19828620), (2, 9914310), (3, 6609540), (4, 4957155), (5, 3965724), (6, 3304770), (7, 2832660), (9, 2203180), (10, 1982862), (12, 1652385), (14, 1416330), (15, 1321908), (18, 1101590), (20, 991431), (21, 944220), (28, 708165), (30, 660954), (35, 566532), (36, 550795), (42, 472110), (45, 440636), (60, 330477), (63, 314740), (70, 283266), (84, 236055), (90, 220318), (105, 188844), (126, 157370), (140, 141633), (180, 110159), (210, 94422), (252, 78685), (315, 62948), (420, 47211), (630, 31474), (1260, 15737)]