28489440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 192

約数和(自身を含む): 104993280

約数和(自身を除く): 76503840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 61, 70, 80, 84, 96, 105, 112, 120, 122, 139, 140, 160, 168, 183, 210, 224, 240, 244, 278, 280, 305, 336, 366, 417, 420, 427, 480, 488, 556, 560, 610, 672, 695, 732, 834, 840, 854, 915, 973, 976, 1112, 1120, 1220, 1281, 1390, 1464, 1668, 1680, 1708, 1830, 1946, 1952, 2085, 2135, 2224, 2440, 2562, 2780, 2919, 2928, 3336, 3360, 3416, 3660, 3892, 4170, 4270, 4448, 4865, 4880, 5124, 5560, 5838, 5856, 6405, 6672, 6832, 7320, 7784, 8340, 8479, 8540, 9730, 9760, 10248, 11120, 11676, 12810, 13344, 13664, 14595, 14640, 15568, 16680, 16958, 17080, 19460, 20496, 22240, 23352, 25437, 25620, 29190, 29280, 31136, 33360, 33916, 34160, 38920, 40992, 42395, 46704, 50874, 51240, 58380, 59353, 66720, 67832, 68320, 77840, 84790, 93408, 101748, 102480, 116760, 118706, 127185, 135664, 155680, 169580, 178059, 203496, 204960, 233520, 237412, 254370, 271328, 296765, 339160, 356118, 406992, 467040, 474824, 508740, 593530, 678320, 712236, 813984, 890295, 949648, 1017480, 1187060, 1356640, 1424472, 1780590, 1899296, 2034960, 2374120, 2848944, 3561180, 4069920, 4748240, 5697888, 7122360, 9496480, 14244720, 28489440]

約数ペア:

[(1, 28489440), (2, 14244720), (3, 9496480), (4, 7122360), (5, 5697888), (6, 4748240), (7, 4069920), (8, 3561180), (10, 2848944), (12, 2374120), (14, 2034960), (15, 1899296), (16, 1780590), (20, 1424472), (21, 1356640), (24, 1187060), (28, 1017480), (30, 949648), (32, 890295), (35, 813984), (40, 712236), (42, 678320), (48, 593530), (56, 508740), (60, 474824), (61, 467040), (70, 406992), (80, 356118), (84, 339160), (96, 296765), (105, 271328), (112, 254370), (120, 237412), (122, 233520), (139, 204960), (140, 203496), (160, 178059), (168, 169580), (183, 155680), (210, 135664), (224, 127185), (240, 118706), (244, 116760), (278, 102480), (280, 101748), (305, 93408), (336, 84790), (366, 77840), (417, 68320), (420, 67832), (427, 66720), (480, 59353), (488, 58380), (556, 51240), (560, 50874), (610, 46704), (672, 42395), (695, 40992), (732, 38920), (834, 34160), (840, 33916), (854, 33360), (915, 31136), (973, 29280), (976, 29190), (1112, 25620), (1120, 25437), (1220, 23352), (1281, 22240), (1390, 20496), (1464, 19460), (1668, 17080), (1680, 16958), (1708, 16680), (1830, 15568), (1946, 14640), (1952, 14595), (2085, 13664), (2135, 13344), (2224, 12810), (2440, 11676), (2562, 11120), (2780, 10248), (2919, 9760), (2928, 9730), (3336, 8540), (3360, 8479), (3416, 8340), (3660, 7784), (3892, 7320), (4170, 6832), (4270, 6672), (4448, 6405), (4865, 5856), (4880, 5838), (5124, 5560)]