19818720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13763}}^1$

素因数の和:13784

約数の個数: 72

約数和(自身を含む): 67636296

約数和(自身を除く): 47817576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13763, 27526, 41289, 55052, 68815, 82578, 110104, 123867, 137630, 165156, 206445, 220208, 247734, 275260, 330312, 412890, 440416, 495468, 550520, 619335, 660624, 825780, 990936, 1101040, 1238670, 1321248, 1651560, 1981872, 2202080, 2477340, 3303120, 3963744, 4954680, 6606240, 9909360, 19818720]

約数ペア:

[(1, 19818720), (2, 9909360), (3, 6606240), (4, 4954680), (5, 3963744), (6, 3303120), (8, 2477340), (9, 2202080), (10, 1981872), (12, 1651560), (15, 1321248), (16, 1238670), (18, 1101040), (20, 990936), (24, 825780), (30, 660624), (32, 619335), (36, 550520), (40, 495468), (45, 440416), (48, 412890), (60, 330312), (72, 275260), (80, 247734), (90, 220208), (96, 206445), (120, 165156), (144, 137630), (160, 123867), (180, 110104), (240, 82578), (288, 68815), (360, 55052), (480, 41289), (720, 27526), (1440, 13763)]