12720960

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{631}}^1$

素因数の和:661

約数の個数: 168

約数和(自身を含む): 50084736

約数和(自身を除く): 37363776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 631, 672, 720, 840, 960, 1008, 1120, 1260, 1262, 1344, 1440, 1680, 1893, 2016, 2240, 2520, 2524, 2880, 3155, 3360, 3786, 4032, 4417, 5040, 5048, 5679, 6310, 6720, 7572, 8834, 9465, 10080, 10096, 11358, 12620, 13251, 15144, 17668, 18930, 20160, 20192, 22085, 22716, 25240, 26502, 28395, 30288, 35336, 37860, 39753, 40384, 44170, 45432, 50480, 53004, 56790, 60576, 66255, 70672, 75720, 79506, 88340, 90864, 100960, 106008, 113580, 121152, 132510, 141344, 151440, 159012, 176680, 181728, 198765, 201920, 212016, 227160, 265020, 282688, 302880, 318024, 353360, 363456, 397530, 424032, 454320, 530040, 605760, 636048, 706720, 795060, 848064, 908640, 1060080, 1272096, 1413440, 1590120, 1817280, 2120160, 2544192, 3180240, 4240320, 6360480, 12720960]

約数ペア:

[(1, 12720960), (2, 6360480), (3, 4240320), (4, 3180240), (5, 2544192), (6, 2120160), (7, 1817280), (8, 1590120), (9, 1413440), (10, 1272096), (12, 1060080), (14, 908640), (15, 848064), (16, 795060), (18, 706720), (20, 636048), (21, 605760), (24, 530040), (28, 454320), (30, 424032), (32, 397530), (35, 363456), (36, 353360), (40, 318024), (42, 302880), (45, 282688), (48, 265020), (56, 227160), (60, 212016), (63, 201920), (64, 198765), (70, 181728), (72, 176680), (80, 159012), (84, 151440), (90, 141344), (96, 132510), (105, 121152), (112, 113580), (120, 106008), (126, 100960), (140, 90864), (144, 88340), (160, 79506), (168, 75720), (180, 70672), (192, 66255), (210, 60576), (224, 56790), (240, 53004), (252, 50480), (280, 45432), (288, 44170), (315, 40384), (320, 39753), (336, 37860), (360, 35336), (420, 30288), (448, 28395), (480, 26502), (504, 25240), (560, 22716), (576, 22085), (630, 20192), (631, 20160), (672, 18930), (720, 17668), (840, 15144), (960, 13251), (1008, 12620), (1120, 11358), (1260, 10096), (1262, 10080), (1344, 9465), (1440, 8834), (1680, 7572), (1893, 6720), (2016, 6310), (2240, 5679), (2520, 5048), (2524, 5040), (2880, 4417), (3155, 4032), (3360, 3786)]