20546880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1259}}^1$

素因数の和:1296

約数の個数: 112

約数和(自身を含む): 69128640

約数和(自身を除く): 48581760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 408, 480, 510, 544, 680, 816, 960, 1020, 1088, 1259, 1360, 1632, 2040, 2518, 2720, 3264, 3777, 4080, 5036, 5440, 6295, 7554, 8160, 10072, 12590, 15108, 16320, 18885, 20144, 21403, 25180, 30216, 37770, 40288, 42806, 50360, 60432, 64209, 75540, 80576, 85612, 100720, 107015, 120864, 128418, 151080, 171224, 201440, 214030, 241728, 256836, 302160, 321045, 342448, 402880, 428060, 513672, 604320, 642090, 684896, 856120, 1027344, 1208640, 1284180, 1369792, 1712240, 2054688, 2568360, 3424480, 4109376, 5136720, 6848960, 10273440, 20546880]

約数ペア:

[(1, 20546880), (2, 10273440), (3, 6848960), (4, 5136720), (5, 4109376), (6, 3424480), (8, 2568360), (10, 2054688), (12, 1712240), (15, 1369792), (16, 1284180), (17, 1208640), (20, 1027344), (24, 856120), (30, 684896), (32, 642090), (34, 604320), (40, 513672), (48, 428060), (51, 402880), (60, 342448), (64, 321045), (68, 302160), (80, 256836), (85, 241728), (96, 214030), (102, 201440), (120, 171224), (136, 151080), (160, 128418), (170, 120864), (192, 107015), (204, 100720), (240, 85612), (255, 80576), (272, 75540), (320, 64209), (340, 60432), (408, 50360), (480, 42806), (510, 40288), (544, 37770), (680, 30216), (816, 25180), (960, 21403), (1020, 20144), (1088, 18885), (1259, 16320), (1360, 15108), (1632, 12590), (2040, 10072), (2518, 8160), (2720, 7554), (3264, 6295), (3777, 5440), (4080, 5036)]