20760480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1$

素因数の和:1143

約数の個数: 144

約数和(自身を含む): 76363560

約数和(自身を除く): 55603080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1109, 1170, 1248, 1440, 1560, 1872, 2080, 2218, 2340, 3120, 3327, 3744, 4436, 4680, 5545, 6240, 6654, 8872, 9360, 9981, 11090, 13308, 14417, 16635, 17744, 18720, 19962, 22180, 26616, 28834, 33270, 35488, 39924, 43251, 44360, 49905, 53232, 57668, 66540, 72085, 79848, 86502, 88720, 99810, 106464, 115336, 129753, 133080, 144170, 159696, 173004, 177440, 199620, 216255, 230672, 259506, 266160, 288340, 319392, 346008, 399240, 432510, 461344, 519012, 532320, 576680, 648765, 692016, 798480, 865020, 1038024, 1153360, 1297530, 1384032, 1596960, 1730040, 2076048, 2306720, 2595060, 3460080, 4152096, 5190120, 6920160, 10380240, 20760480]

約数ペア:

[(1, 20760480), (2, 10380240), (3, 6920160), (4, 5190120), (5, 4152096), (6, 3460080), (8, 2595060), (9, 2306720), (10, 2076048), (12, 1730040), (13, 1596960), (15, 1384032), (16, 1297530), (18, 1153360), (20, 1038024), (24, 865020), (26, 798480), (30, 692016), (32, 648765), (36, 576680), (39, 532320), (40, 519012), (45, 461344), (48, 432510), (52, 399240), (60, 346008), (65, 319392), (72, 288340), (78, 266160), (80, 259506), (90, 230672), (96, 216255), (104, 199620), (117, 177440), (120, 173004), (130, 159696), (144, 144170), (156, 133080), (160, 129753), (180, 115336), (195, 106464), (208, 99810), (234, 88720), (240, 86502), (260, 79848), (288, 72085), (312, 66540), (360, 57668), (390, 53232), (416, 49905), (468, 44360), (480, 43251), (520, 39924), (585, 35488), (624, 33270), (720, 28834), (780, 26616), (936, 22180), (1040, 19962), (1109, 18720), (1170, 17744), (1248, 16635), (1440, 14417), (1560, 13308), (1872, 11090), (2080, 9981), (2218, 9360), (2340, 8872), (3120, 6654), (3327, 6240), (3744, 5545), (4436, 4680)]