20805216320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3541}}^1$

素因数の和:3669

約数の個数: 224

約数和(自身を含む): 58903063296

約数和(自身を除く): 38097846976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 61, 64, 70, 80, 86, 112, 122, 140, 160, 172, 215, 224, 244, 280, 301, 305, 320, 344, 427, 430, 448, 488, 560, 602, 610, 688, 854, 860, 976, 1120, 1204, 1220, 1376, 1505, 1708, 1720, 1952, 2135, 2240, 2408, 2440, 2623, 2752, 3010, 3416, 3440, 3541, 3904, 4270, 4816, 4880, 5246, 6020, 6832, 6880, 7082, 8540, 9632, 9760, 10492, 12040, 13115, 13664, 13760, 14164, 17080, 17705, 18361, 19264, 19520, 20984, 24080, 24787, 26230, 27328, 28328, 34160, 35410, 36722, 41968, 48160, 49574, 52460, 56656, 68320, 70820, 73444, 83936, 91805, 96320, 99148, 104920, 113312, 123935, 136640, 141640, 146888, 152263, 167872, 183610, 198296, 209840, 216001, 226624, 247870, 283280, 293776, 304526, 367220, 396592, 419680, 432002, 495740, 566560, 587552, 609052, 734440, 761315, 793184, 839360, 864004, 991480, 1065841, 1080005, 1133120, 1175104, 1218104, 1468880, 1512007, 1522630, 1586368, 1728008, 1982960, 2131682, 2160010, 2436208, 2937760, 3024014, 3045260, 3456016, 3965920, 4263364, 4320020, 4872416, 5329205, 5875520, 6048028, 6090520, 6912032, 7560035, 7931840, 8526728, 8640040, 9288043, 9744832, 10658410, 12096056, 12181040, 13824064, 15120070, 17053456, 17280080, 18576086, 21316820, 24192112, 24362080, 30240140, 34106912, 34560160, 37152172, 42633640, 46440215, 48384224, 48724160, 60480280, 65016301, 68213824, 69120320, 74304344, 85267280, 92880430, 96768448, 120960560, 130032602, 148608688, 170534560, 185760860, 241921120, 260065204, 297217376, 325081505, 341069120, 371521720, 483842240, 520130408, 594434752, 650163010, 743043440, 1040260816, 1300326020, 1486086880, 2080521632, 2600652040, 2972173760, 4161043264, 5201304080, 10402608160, 20805216320]

約数ペア:

[(1, 20805216320), (2, 10402608160), (4, 5201304080), (5, 4161043264), (7, 2972173760), (8, 2600652040), (10, 2080521632), (14, 1486086880), (16, 1300326020), (20, 1040260816), (28, 743043440), (32, 650163010), (35, 594434752), (40, 520130408), (43, 483842240), (56, 371521720), (61, 341069120), (64, 325081505), (70, 297217376), (80, 260065204), (86, 241921120), (112, 185760860), (122, 170534560), (140, 148608688), (160, 130032602), (172, 120960560), (215, 96768448), (224, 92880430), (244, 85267280), (280, 74304344), (301, 69120320), (305, 68213824), (320, 65016301), (344, 60480280), (427, 48724160), (430, 48384224), (448, 46440215), (488, 42633640), (560, 37152172), (602, 34560160), (610, 34106912), (688, 30240140), (854, 24362080), (860, 24192112), (976, 21316820), (1120, 18576086), (1204, 17280080), (1220, 17053456), (1376, 15120070), (1505, 13824064), (1708, 12181040), (1720, 12096056), (1952, 10658410), (2135, 9744832), (2240, 9288043), (2408, 8640040), (2440, 8526728), (2623, 7931840), (2752, 7560035), (3010, 6912032), (3416, 6090520), (3440, 6048028), (3541, 5875520), (3904, 5329205), (4270, 4872416), (4816, 4320020), (4880, 4263364), (5246, 3965920), (6020, 3456016), (6832, 3045260), (6880, 3024014), (7082, 2937760), (8540, 2436208), (9632, 2160010), (9760, 2131682), (10492, 1982960), (12040, 1728008), (13115, 1586368), (13664, 1522630), (13760, 1512007), (14164, 1468880), (17080, 1218104), (17705, 1175104), (18361, 1133120), (19264, 1080005), (19520, 1065841), (20984, 991480), (24080, 864004), (24787, 839360), (26230, 793184), (27328, 761315), (28328, 734440), (34160, 609052), (35410, 587552), (36722, 566560), (41968, 495740), (48160, 432002), (49574, 419680), (52460, 396592), (56656, 367220), (68320, 304526), (70820, 293776), (73444, 283280), (83936, 247870), (91805, 226624), (96320, 216001), (99148, 209840), (104920, 198296), (113312, 183610), (123935, 167872), (136640, 152263), (141640, 146888)]