20768748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 216

約数和(自身を含む): 70096320

約数和(自身を除く): 49327572

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 19, 21, 22, 26, 28, 33, 38, 39, 42, 44, 49, 52, 57, 66, 76, 77, 78, 84, 91, 98, 114, 132, 133, 143, 147, 154, 156, 169, 182, 196, 209, 228, 231, 247, 266, 273, 286, 294, 308, 338, 364, 399, 418, 429, 462, 494, 507, 532, 539, 546, 572, 588, 627, 637, 676, 741, 798, 836, 858, 924, 931, 988, 1001, 1014, 1078, 1092, 1183, 1254, 1274, 1463, 1482, 1596, 1617, 1716, 1729, 1859, 1862, 1911, 2002, 2028, 2156, 2366, 2508, 2548, 2717, 2793, 2926, 2964, 3003, 3211, 3234, 3458, 3549, 3718, 3724, 3822, 4004, 4389, 4732, 5187, 5434, 5577, 5586, 5852, 6006, 6422, 6468, 6916, 7007, 7098, 7436, 7644, 8151, 8281, 8778, 9633, 10241, 10374, 10868, 11154, 11172, 12012, 12103, 12844, 13013, 14014, 14196, 16302, 16562, 17556, 19019, 19266, 20482, 20748, 21021, 22308, 22477, 24206, 24843, 26026, 28028, 30723, 32604, 33124, 35321, 36309, 38038, 38532, 39039, 40964, 42042, 44954, 48412, 49686, 52052, 57057, 61446, 67431, 70642, 72618, 76076, 78078, 84084, 89908, 91091, 99372, 105963, 114114, 122892, 133133, 134862, 141284, 145236, 156156, 157339, 182182, 211926, 228228, 247247, 266266, 269724, 273273, 314678, 364364, 399399, 423852, 472017, 494494, 532532, 546546, 629356, 741741, 798798, 944034, 988988, 1093092, 1483482, 1597596, 1730729, 1888068, 2966964, 3461458, 5192187, 6922916, 10384374, 20768748]

約数ペア:

[(1, 20768748), (2, 10384374), (3, 6922916), (4, 5192187), (6, 3461458), (7, 2966964), (11, 1888068), (12, 1730729), (13, 1597596), (14, 1483482), (19, 1093092), (21, 988988), (22, 944034), (26, 798798), (28, 741741), (33, 629356), (38, 546546), (39, 532532), (42, 494494), (44, 472017), (49, 423852), (52, 399399), (57, 364364), (66, 314678), (76, 273273), (77, 269724), (78, 266266), (84, 247247), (91, 228228), (98, 211926), (114, 182182), (132, 157339), (133, 156156), (143, 145236), (147, 141284), (154, 134862), (156, 133133), (169, 122892), (182, 114114), (196, 105963), (209, 99372), (228, 91091), (231, 89908), (247, 84084), (266, 78078), (273, 76076), (286, 72618), (294, 70642), (308, 67431), (338, 61446), (364, 57057), (399, 52052), (418, 49686), (429, 48412), (462, 44954), (494, 42042), (507, 40964), (532, 39039), (539, 38532), (546, 38038), (572, 36309), (588, 35321), (627, 33124), (637, 32604), (676, 30723), (741, 28028), (798, 26026), (836, 24843), (858, 24206), (924, 22477), (931, 22308), (988, 21021), (1001, 20748), (1014, 20482), (1078, 19266), (1092, 19019), (1183, 17556), (1254, 16562), (1274, 16302), (1463, 14196), (1482, 14014), (1596, 13013), (1617, 12844), (1716, 12103), (1729, 12012), (1859, 11172), (1862, 11154), (1911, 10868), (2002, 10374), (2028, 10241), (2156, 9633), (2366, 8778), (2508, 8281), (2548, 8151), (2717, 7644), (2793, 7436), (2926, 7098), (2964, 7007), (3003, 6916), (3211, 6468), (3234, 6422), (3458, 6006), (3549, 5852), (3718, 5586), (3724, 5577), (3822, 5434), (4004, 5187), (4389, 4732)]