20456640

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7103}}^1$

素因数の和:7126

約数の個数: 84

約数和(自身を含む): 70372224

約数和(自身を除く): 49915584

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, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7103, 14206, 21309, 28412, 35515, 42618, 56824, 63927, 71030, 85236, 106545, 113648, 127854, 142060, 170472, 213090, 227296, 255708, 284120, 319635, 340944, 426180, 454592, 511416, 568240, 639270, 681888, 852360, 1022832, 1136480, 1278540, 1363776, 1704720, 2045664, 2272960, 2557080, 3409440, 4091328, 5114160, 6818880, 10228320, 20456640]

約数ペア:

[(1, 20456640), (2, 10228320), (3, 6818880), (4, 5114160), (5, 4091328), (6, 3409440), (8, 2557080), (9, 2272960), (10, 2045664), (12, 1704720), (15, 1363776), (16, 1278540), (18, 1136480), (20, 1022832), (24, 852360), (30, 681888), (32, 639270), (36, 568240), (40, 511416), (45, 454592), (48, 426180), (60, 340944), (64, 319635), (72, 284120), (80, 255708), (90, 227296), (96, 213090), (120, 170472), (144, 142060), (160, 127854), (180, 113648), (192, 106545), (240, 85236), (288, 71030), (320, 63927), (360, 56824), (480, 42618), (576, 35515), (720, 28412), (960, 21309), (1440, 14206), (2880, 7103)]