20329920

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:220

約数の個数: 224

約数和(自身を含む): 77663040

約数和(自身を除く): 57333120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 181, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 351, 360, 362, 390, 416, 432, 468, 480, 520, 540, 543, 576, 585, 624, 702, 720, 724, 780, 832, 864, 905, 936, 960, 1040, 1080, 1086, 1170, 1248, 1404, 1440, 1448, 1560, 1629, 1728, 1755, 1810, 1872, 2080, 2160, 2172, 2340, 2353, 2496, 2715, 2808, 2880, 2896, 3120, 3258, 3510, 3620, 3744, 4160, 4320, 4344, 4680, 4706, 4887, 5430, 5616, 5792, 6240, 6516, 7020, 7059, 7240, 7488, 8145, 8640, 8688, 9360, 9412, 9774, 10860, 11232, 11584, 11765, 12480, 13032, 14040, 14118, 14480, 16290, 17376, 18720, 18824, 19548, 21177, 21720, 22464, 23530, 24435, 26064, 28080, 28236, 28960, 32580, 34752, 35295, 37440, 37648, 39096, 42354, 43440, 47060, 48870, 52128, 56160, 56472, 57920, 63531, 65160, 70590, 75296, 78192, 84708, 86880, 94120, 97740, 104256, 105885, 112320, 112944, 127062, 130320, 141180, 150592, 156384, 169416, 173760, 188240, 195480, 211770, 225888, 254124, 260640, 282360, 312768, 317655, 338832, 376480, 390960, 423540, 451776, 508248, 521280, 564720, 635310, 677664, 752960, 781920, 847080, 1016496, 1129440, 1270620, 1355328, 1563840, 1694160, 2032992, 2258880, 2541240, 3388320, 4065984, 5082480, 6776640, 10164960, 20329920]

約数ペア:

[(1, 20329920), (2, 10164960), (3, 6776640), (4, 5082480), (5, 4065984), (6, 3388320), (8, 2541240), (9, 2258880), (10, 2032992), (12, 1694160), (13, 1563840), (15, 1355328), (16, 1270620), (18, 1129440), (20, 1016496), (24, 847080), (26, 781920), (27, 752960), (30, 677664), (32, 635310), (36, 564720), (39, 521280), (40, 508248), (45, 451776), (48, 423540), (52, 390960), (54, 376480), (60, 338832), (64, 317655), (65, 312768), (72, 282360), (78, 260640), (80, 254124), (90, 225888), (96, 211770), (104, 195480), (108, 188240), (117, 173760), (120, 169416), (130, 156384), (135, 150592), (144, 141180), (156, 130320), (160, 127062), (180, 112944), (181, 112320), (192, 105885), (195, 104256), (208, 97740), (216, 94120), (234, 86880), (240, 84708), (260, 78192), (270, 75296), (288, 70590), (312, 65160), (320, 63531), (351, 57920), (360, 56472), (362, 56160), (390, 52128), (416, 48870), (432, 47060), (468, 43440), (480, 42354), (520, 39096), (540, 37648), (543, 37440), (576, 35295), (585, 34752), (624, 32580), (702, 28960), (720, 28236), (724, 28080), (780, 26064), (832, 24435), (864, 23530), (905, 22464), (936, 21720), (960, 21177), (1040, 19548), (1080, 18824), (1086, 18720), (1170, 17376), (1248, 16290), (1404, 14480), (1440, 14118), (1448, 14040), (1560, 13032), (1629, 12480), (1728, 11765), (1755, 11584), (1810, 11232), (1872, 10860), (2080, 9774), (2160, 9412), (2172, 9360), (2340, 8688), (2353, 8640), (2496, 8145), (2715, 7488), (2808, 7240), (2880, 7059), (2896, 7020), (3120, 6516), (3258, 6240), (3510, 5792), (3620, 5616), (3744, 5430), (4160, 4887), (4320, 4706), (4344, 4680)]