20173440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 256

約数和(自身を含む): 78336000

約数和(自身を除く): 58162560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 64, 70, 76, 79, 80, 84, 95, 96, 105, 112, 114, 120, 128, 133, 140, 152, 158, 160, 168, 190, 192, 210, 224, 228, 237, 240, 266, 280, 285, 304, 316, 320, 336, 380, 384, 395, 399, 420, 448, 456, 474, 480, 532, 553, 560, 570, 608, 632, 640, 665, 672, 760, 790, 798, 840, 896, 912, 948, 960, 1064, 1106, 1120, 1140, 1185, 1216, 1264, 1330, 1344, 1501, 1520, 1580, 1596, 1659, 1680, 1824, 1896, 1920, 1995, 2128, 2212, 2240, 2280, 2370, 2432, 2528, 2660, 2688, 2765, 3002, 3040, 3160, 3192, 3318, 3360, 3648, 3792, 3990, 4256, 4424, 4480, 4503, 4560, 4740, 5056, 5320, 5530, 6004, 6080, 6320, 6384, 6636, 6720, 7296, 7505, 7584, 7980, 8295, 8512, 8848, 9006, 9120, 9480, 10112, 10507, 10640, 11060, 12008, 12160, 12640, 12768, 13272, 13440, 15010, 15168, 15960, 16590, 17024, 17696, 18012, 18240, 18960, 21014, 21280, 22120, 22515, 24016, 25280, 25536, 26544, 30020, 30336, 31521, 31920, 33180, 35392, 36024, 36480, 37920, 42028, 42560, 44240, 45030, 48032, 50560, 51072, 52535, 53088, 60040, 63042, 63840, 66360, 70784, 72048, 75840, 84056, 85120, 88480, 90060, 96064, 105070, 106176, 120080, 126084, 127680, 132720, 144096, 151680, 157605, 168112, 176960, 180120, 192128, 210140, 212352, 240160, 252168, 255360, 265440, 288192, 315210, 336224, 353920, 360240, 420280, 480320, 504336, 530880, 576384, 630420, 672448, 720480, 840560, 960640, 1008672, 1061760, 1260840, 1344896, 1440960, 1681120, 2017344, 2521680, 2881920, 3362240, 4034688, 5043360, 6724480, 10086720, 20173440]

約数ペア:

[(1, 20173440), (2, 10086720), (3, 6724480), (4, 5043360), (5, 4034688), (6, 3362240), (7, 2881920), (8, 2521680), (10, 2017344), (12, 1681120), (14, 1440960), (15, 1344896), (16, 1260840), (19, 1061760), (20, 1008672), (21, 960640), (24, 840560), (28, 720480), (30, 672448), (32, 630420), (35, 576384), (38, 530880), (40, 504336), (42, 480320), (48, 420280), (56, 360240), (57, 353920), (60, 336224), (64, 315210), (70, 288192), (76, 265440), (79, 255360), (80, 252168), (84, 240160), (95, 212352), (96, 210140), (105, 192128), (112, 180120), (114, 176960), (120, 168112), (128, 157605), (133, 151680), (140, 144096), (152, 132720), (158, 127680), (160, 126084), (168, 120080), (190, 106176), (192, 105070), (210, 96064), (224, 90060), (228, 88480), (237, 85120), (240, 84056), (266, 75840), (280, 72048), (285, 70784), (304, 66360), (316, 63840), (320, 63042), (336, 60040), (380, 53088), (384, 52535), (395, 51072), (399, 50560), (420, 48032), (448, 45030), (456, 44240), (474, 42560), (480, 42028), (532, 37920), (553, 36480), (560, 36024), (570, 35392), (608, 33180), (632, 31920), (640, 31521), (665, 30336), (672, 30020), (760, 26544), (790, 25536), (798, 25280), (840, 24016), (896, 22515), (912, 22120), (948, 21280), (960, 21014), (1064, 18960), (1106, 18240), (1120, 18012), (1140, 17696), (1185, 17024), (1216, 16590), (1264, 15960), (1330, 15168), (1344, 15010), (1501, 13440), (1520, 13272), (1580, 12768), (1596, 12640), (1659, 12160), (1680, 12008), (1824, 11060), (1896, 10640), (1920, 10507), (1995, 10112), (2128, 9480), (2212, 9120), (2240, 9006), (2280, 8848), (2370, 8512), (2432, 8295), (2528, 7980), (2660, 7584), (2688, 7505), (2765, 7296), (3002, 6720), (3040, 6636), (3160, 6384), (3192, 6320), (3318, 6080), (3360, 6004), (3648, 5530), (3792, 5320), (3990, 5056), (4256, 4740), (4424, 4560), (4480, 4503)]