28027440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 240

約数和(自身を含む): 110492928

約数和(自身を除く): 82465488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 67, 70, 72, 80, 83, 84, 90, 105, 112, 120, 126, 134, 140, 144, 166, 168, 180, 201, 210, 240, 249, 252, 268, 280, 315, 332, 335, 336, 360, 402, 415, 420, 469, 498, 504, 536, 560, 581, 603, 630, 664, 670, 720, 747, 804, 830, 840, 938, 996, 1005, 1008, 1072, 1162, 1206, 1245, 1260, 1328, 1340, 1407, 1494, 1608, 1660, 1680, 1743, 1876, 1992, 2010, 2324, 2345, 2412, 2490, 2520, 2680, 2814, 2905, 2988, 3015, 3216, 3320, 3486, 3735, 3752, 3984, 4020, 4221, 4648, 4690, 4824, 4980, 5040, 5229, 5360, 5561, 5628, 5810, 5976, 6030, 6640, 6972, 7035, 7470, 7504, 8040, 8442, 8715, 9296, 9380, 9648, 9960, 10458, 11122, 11256, 11620, 11952, 12060, 13944, 14070, 14940, 16080, 16683, 16884, 17430, 18760, 19920, 20916, 21105, 22244, 22512, 23240, 24120, 26145, 27805, 27888, 28140, 29880, 33366, 33768, 34860, 37520, 38927, 41832, 42210, 44488, 46480, 48240, 50049, 52290, 55610, 56280, 59760, 66732, 67536, 69720, 77854, 83415, 83664, 84420, 88976, 100098, 104580, 111220, 112560, 116781, 133464, 139440, 155708, 166830, 168840, 194635, 200196, 209160, 222440, 233562, 250245, 266928, 311416, 333660, 337680, 350343, 389270, 400392, 418320, 444880, 467124, 500490, 583905, 622832, 667320, 700686, 778540, 800784, 934248, 1000980, 1167810, 1334640, 1401372, 1557080, 1751715, 1868496, 2001960, 2335620, 2802744, 3114160, 3503430, 4003920, 4671240, 5605488, 7006860, 9342480, 14013720, 28027440]

約数ペア:

[(1, 28027440), (2, 14013720), (3, 9342480), (4, 7006860), (5, 5605488), (6, 4671240), (7, 4003920), (8, 3503430), (9, 3114160), (10, 2802744), (12, 2335620), (14, 2001960), (15, 1868496), (16, 1751715), (18, 1557080), (20, 1401372), (21, 1334640), (24, 1167810), (28, 1000980), (30, 934248), (35, 800784), (36, 778540), (40, 700686), (42, 667320), (45, 622832), (48, 583905), (56, 500490), (60, 467124), (63, 444880), (67, 418320), (70, 400392), (72, 389270), (80, 350343), (83, 337680), (84, 333660), (90, 311416), (105, 266928), (112, 250245), (120, 233562), (126, 222440), (134, 209160), (140, 200196), (144, 194635), (166, 168840), (168, 166830), (180, 155708), (201, 139440), (210, 133464), (240, 116781), (249, 112560), (252, 111220), (268, 104580), (280, 100098), (315, 88976), (332, 84420), (335, 83664), (336, 83415), (360, 77854), (402, 69720), (415, 67536), (420, 66732), (469, 59760), (498, 56280), (504, 55610), (536, 52290), (560, 50049), (581, 48240), (603, 46480), (630, 44488), (664, 42210), (670, 41832), (720, 38927), (747, 37520), (804, 34860), (830, 33768), (840, 33366), (938, 29880), (996, 28140), (1005, 27888), (1008, 27805), (1072, 26145), (1162, 24120), (1206, 23240), (1245, 22512), (1260, 22244), (1328, 21105), (1340, 20916), (1407, 19920), (1494, 18760), (1608, 17430), (1660, 16884), (1680, 16683), (1743, 16080), (1876, 14940), (1992, 14070), (2010, 13944), (2324, 12060), (2345, 11952), (2412, 11620), (2490, 11256), (2520, 11122), (2680, 10458), (2814, 9960), (2905, 9648), (2988, 9380), (3015, 9296), (3216, 8715), (3320, 8442), (3486, 8040), (3735, 7504), (3752, 7470), (3984, 7035), (4020, 6972), (4221, 6640), (4648, 6030), (4690, 5976), (4824, 5810), (4980, 5628), (5040, 5561), (5229, 5360)]