12980800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 168

約数和(自身を含む): 39055040

約数和(自身を除く): 26074240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 32, 35, 38, 40, 50, 56, 61, 64, 70, 76, 80, 95, 100, 112, 122, 133, 140, 152, 160, 175, 190, 200, 224, 244, 266, 280, 304, 305, 320, 350, 380, 400, 427, 448, 475, 488, 532, 560, 608, 610, 665, 700, 760, 800, 854, 950, 976, 1064, 1120, 1159, 1216, 1220, 1330, 1400, 1520, 1525, 1600, 1708, 1900, 1952, 2128, 2135, 2240, 2318, 2440, 2660, 2800, 3040, 3050, 3325, 3416, 3800, 3904, 4256, 4270, 4636, 4880, 5320, 5600, 5795, 6080, 6100, 6650, 6832, 7600, 8113, 8512, 8540, 9272, 9760, 10640, 10675, 11200, 11590, 12200, 13300, 13664, 15200, 16226, 17080, 18544, 19520, 21280, 21350, 23180, 24400, 26600, 27328, 28975, 30400, 32452, 34160, 37088, 40565, 42560, 42700, 46360, 48800, 53200, 57950, 64904, 68320, 74176, 81130, 85400, 92720, 97600, 106400, 115900, 129808, 136640, 162260, 170800, 185440, 202825, 212800, 231800, 259616, 324520, 341600, 370880, 405650, 463600, 519232, 649040, 683200, 811300, 927200, 1298080, 1622600, 1854400, 2596160, 3245200, 6490400, 12980800]

約数ペア:

[(1, 12980800), (2, 6490400), (4, 3245200), (5, 2596160), (7, 1854400), (8, 1622600), (10, 1298080), (14, 927200), (16, 811300), (19, 683200), (20, 649040), (25, 519232), (28, 463600), (32, 405650), (35, 370880), (38, 341600), (40, 324520), (50, 259616), (56, 231800), (61, 212800), (64, 202825), (70, 185440), (76, 170800), (80, 162260), (95, 136640), (100, 129808), (112, 115900), (122, 106400), (133, 97600), (140, 92720), (152, 85400), (160, 81130), (175, 74176), (190, 68320), (200, 64904), (224, 57950), (244, 53200), (266, 48800), (280, 46360), (304, 42700), (305, 42560), (320, 40565), (350, 37088), (380, 34160), (400, 32452), (427, 30400), (448, 28975), (475, 27328), (488, 26600), (532, 24400), (560, 23180), (608, 21350), (610, 21280), (665, 19520), (700, 18544), (760, 17080), (800, 16226), (854, 15200), (950, 13664), (976, 13300), (1064, 12200), (1120, 11590), (1159, 11200), (1216, 10675), (1220, 10640), (1330, 9760), (1400, 9272), (1520, 8540), (1525, 8512), (1600, 8113), (1708, 7600), (1900, 6832), (1952, 6650), (2128, 6100), (2135, 6080), (2240, 5795), (2318, 5600), (2440, 5320), (2660, 4880), (2800, 4636), (3040, 4270), (3050, 4256), (3325, 3904), (3416, 3800)]