280418040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{499}}^1$

素因数の和:746

約数の個数: 192

約数和(自身を含む): 1048320000

約数和(自身を除く): 767901960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 223, 252, 280, 315, 360, 420, 446, 499, 504, 630, 669, 840, 892, 998, 1115, 1260, 1338, 1497, 1561, 1784, 1996, 2007, 2230, 2495, 2520, 2676, 2994, 3122, 3345, 3493, 3992, 4014, 4460, 4491, 4683, 4990, 5352, 5988, 6244, 6690, 6986, 7485, 7805, 8028, 8920, 8982, 9366, 9980, 10035, 10479, 11976, 12488, 13380, 13972, 14049, 14970, 15610, 16056, 17465, 17964, 18732, 19960, 20070, 20958, 22455, 23415, 26760, 27944, 28098, 29940, 31220, 31437, 34930, 35928, 37464, 40140, 41916, 44910, 46830, 52395, 56196, 59880, 62440, 62874, 69860, 70245, 80280, 83832, 89820, 93660, 104790, 111277, 112392, 125748, 139720, 140490, 157185, 179640, 187320, 209580, 222554, 251496, 280980, 314370, 333831, 419160, 445108, 556385, 561960, 628740, 667662, 778939, 890216, 1001493, 1112770, 1257480, 1335324, 1557878, 1669155, 2002986, 2225540, 2336817, 2670648, 3115756, 3338310, 3894695, 4005972, 4451080, 4673634, 5007465, 6231512, 6676620, 7010451, 7789390, 8011944, 9347268, 10014930, 11684085, 13353240, 14020902, 15578780, 18694536, 20029860, 23368170, 28041804, 31157560, 35052255, 40059720, 46736340, 56083608, 70104510, 93472680, 140209020, 280418040]

約数ペア:

[(1, 280418040), (2, 140209020), (3, 93472680), (4, 70104510), (5, 56083608), (6, 46736340), (7, 40059720), (8, 35052255), (9, 31157560), (10, 28041804), (12, 23368170), (14, 20029860), (15, 18694536), (18, 15578780), (20, 14020902), (21, 13353240), (24, 11684085), (28, 10014930), (30, 9347268), (35, 8011944), (36, 7789390), (40, 7010451), (42, 6676620), (45, 6231512), (56, 5007465), (60, 4673634), (63, 4451080), (70, 4005972), (72, 3894695), (84, 3338310), (90, 3115756), (105, 2670648), (120, 2336817), (126, 2225540), (140, 2002986), (168, 1669155), (180, 1557878), (210, 1335324), (223, 1257480), (252, 1112770), (280, 1001493), (315, 890216), (360, 778939), (420, 667662), (446, 628740), (499, 561960), (504, 556385), (630, 445108), (669, 419160), (840, 333831), (892, 314370), (998, 280980), (1115, 251496), (1260, 222554), (1338, 209580), (1497, 187320), (1561, 179640), (1784, 157185), (1996, 140490), (2007, 139720), (2230, 125748), (2495, 112392), (2520, 111277), (2676, 104790), (2994, 93660), (3122, 89820), (3345, 83832), (3493, 80280), (3992, 70245), (4014, 69860), (4460, 62874), (4491, 62440), (4683, 59880), (4990, 56196), (5352, 52395), (5988, 46830), (6244, 44910), (6690, 41916), (6986, 40140), (7485, 37464), (7805, 35928), (8028, 34930), (8920, 31437), (8982, 31220), (9366, 29940), (9980, 28098), (10035, 27944), (10479, 26760), (11976, 23415), (12488, 22455), (13380, 20958), (13972, 20070), (14049, 19960), (14970, 18732), (15610, 17964), (16056, 17465)]