20178720

素因数分解:

$2^5\times 3^6\times 5^1\times {\mathrm{173}}^1$

素因数の和:206

約数の個数: 168

約数和(自身を含む): 71888796

約数和(自身を除く): 51710076

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 173, 180, 216, 240, 243, 270, 288, 324, 346, 360, 405, 432, 480, 486, 519, 540, 648, 692, 720, 729, 810, 864, 865, 972, 1038, 1080, 1215, 1296, 1384, 1440, 1458, 1557, 1620, 1730, 1944, 2076, 2160, 2430, 2592, 2595, 2768, 2916, 3114, 3240, 3460, 3645, 3888, 4152, 4320, 4671, 4860, 5190, 5536, 5832, 6228, 6480, 6920, 7290, 7776, 7785, 8304, 9342, 9720, 10380, 11664, 12456, 12960, 13840, 14013, 14580, 15570, 16608, 18684, 19440, 20760, 23328, 23355, 24912, 27680, 28026, 29160, 31140, 37368, 38880, 41520, 42039, 46710, 49824, 56052, 58320, 62280, 70065, 74736, 83040, 84078, 93420, 112104, 116640, 124560, 126117, 140130, 149472, 168156, 186840, 210195, 224208, 249120, 252234, 280260, 336312, 373680, 420390, 448416, 504468, 560520, 630585, 672624, 747360, 840780, 1008936, 1121040, 1261170, 1345248, 1681560, 2017872, 2242080, 2522340, 3363120, 4035744, 5044680, 6726240, 10089360, 20178720]

約数ペア:

[(1, 20178720), (2, 10089360), (3, 6726240), (4, 5044680), (5, 4035744), (6, 3363120), (8, 2522340), (9, 2242080), (10, 2017872), (12, 1681560), (15, 1345248), (16, 1261170), (18, 1121040), (20, 1008936), (24, 840780), (27, 747360), (30, 672624), (32, 630585), (36, 560520), (40, 504468), (45, 448416), (48, 420390), (54, 373680), (60, 336312), (72, 280260), (80, 252234), (81, 249120), (90, 224208), (96, 210195), (108, 186840), (120, 168156), (135, 149472), (144, 140130), (160, 126117), (162, 124560), (173, 116640), (180, 112104), (216, 93420), (240, 84078), (243, 83040), (270, 74736), (288, 70065), (324, 62280), (346, 58320), (360, 56052), (405, 49824), (432, 46710), (480, 42039), (486, 41520), (519, 38880), (540, 37368), (648, 31140), (692, 29160), (720, 28026), (729, 27680), (810, 24912), (864, 23355), (865, 23328), (972, 20760), (1038, 19440), (1080, 18684), (1215, 16608), (1296, 15570), (1384, 14580), (1440, 14013), (1458, 13840), (1557, 12960), (1620, 12456), (1730, 11664), (1944, 10380), (2076, 9720), (2160, 9342), (2430, 8304), (2592, 7785), (2595, 7776), (2768, 7290), (2916, 6920), (3114, 6480), (3240, 6228), (3460, 5832), (3645, 5536), (3888, 5190), (4152, 4860), (4320, 4671)]