28557760

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 224

約数和(自身を含む): 90708480

約数和(自身を除く): 62150720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 32, 35, 38, 40, 44, 55, 56, 61, 64, 70, 76, 77, 80, 88, 95, 110, 112, 122, 133, 140, 152, 154, 160, 176, 190, 209, 220, 224, 244, 266, 280, 304, 305, 308, 320, 352, 380, 385, 418, 427, 440, 448, 488, 532, 560, 608, 610, 616, 665, 671, 704, 760, 770, 836, 854, 880, 976, 1045, 1064, 1120, 1159, 1216, 1220, 1232, 1330, 1342, 1463, 1520, 1540, 1672, 1708, 1760, 1952, 2090, 2128, 2135, 2240, 2318, 2440, 2464, 2660, 2684, 2926, 3040, 3080, 3344, 3355, 3416, 3520, 3904, 4180, 4256, 4270, 4636, 4697, 4880, 4928, 5320, 5368, 5795, 5852, 6080, 6160, 6688, 6710, 6832, 7315, 8113, 8360, 8512, 8540, 9272, 9394, 9760, 10640, 10736, 11590, 11704, 12320, 12749, 13376, 13420, 13664, 14630, 16226, 16720, 17080, 18544, 18788, 19520, 21280, 21472, 23180, 23408, 23485, 24640, 25498, 26840, 27328, 29260, 32452, 33440, 34160, 37088, 37576, 40565, 42560, 42944, 46360, 46816, 46970, 50996, 53680, 58520, 63745, 64904, 66880, 68320, 74176, 75152, 81130, 89243, 92720, 93632, 93940, 101992, 107360, 117040, 127490, 129808, 136640, 150304, 162260, 178486, 185440, 187880, 203984, 214720, 234080, 254980, 259616, 300608, 324520, 356972, 370880, 375760, 407968, 446215, 468160, 509960, 519232, 649040, 713944, 751520, 815936, 892430, 1019920, 1298080, 1427888, 1503040, 1784860, 2039840, 2596160, 2855776, 3569720, 4079680, 5711552, 7139440, 14278880, 28557760]

約数ペア:

[(1, 28557760), (2, 14278880), (4, 7139440), (5, 5711552), (7, 4079680), (8, 3569720), (10, 2855776), (11, 2596160), (14, 2039840), (16, 1784860), (19, 1503040), (20, 1427888), (22, 1298080), (28, 1019920), (32, 892430), (35, 815936), (38, 751520), (40, 713944), (44, 649040), (55, 519232), (56, 509960), (61, 468160), (64, 446215), (70, 407968), (76, 375760), (77, 370880), (80, 356972), (88, 324520), (95, 300608), (110, 259616), (112, 254980), (122, 234080), (133, 214720), (140, 203984), (152, 187880), (154, 185440), (160, 178486), (176, 162260), (190, 150304), (209, 136640), (220, 129808), (224, 127490), (244, 117040), (266, 107360), (280, 101992), (304, 93940), (305, 93632), (308, 92720), (320, 89243), (352, 81130), (380, 75152), (385, 74176), (418, 68320), (427, 66880), (440, 64904), (448, 63745), (488, 58520), (532, 53680), (560, 50996), (608, 46970), (610, 46816), (616, 46360), (665, 42944), (671, 42560), (704, 40565), (760, 37576), (770, 37088), (836, 34160), (854, 33440), (880, 32452), (976, 29260), (1045, 27328), (1064, 26840), (1120, 25498), (1159, 24640), (1216, 23485), (1220, 23408), (1232, 23180), (1330, 21472), (1342, 21280), (1463, 19520), (1520, 18788), (1540, 18544), (1672, 17080), (1708, 16720), (1760, 16226), (1952, 14630), (2090, 13664), (2128, 13420), (2135, 13376), (2240, 12749), (2318, 12320), (2440, 11704), (2464, 11590), (2660, 10736), (2684, 10640), (2926, 9760), (3040, 9394), (3080, 9272), (3344, 8540), (3355, 8512), (3416, 8360), (3520, 8113), (3904, 7315), (4180, 6832), (4256, 6710), (4270, 6688), (4636, 6160), (4697, 6080), (4880, 5852), (4928, 5795), (5320, 5368)]