1971980892

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3461}}^1$

素因数の和:3521

約数の個数: 216

約数和(自身を含む): 6464661840

約数和(自身を除く): 4492680948

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 49, 51, 57, 63, 68, 76, 84, 98, 102, 114, 119, 126, 133, 147, 153, 171, 196, 204, 228, 238, 252, 266, 294, 306, 323, 342, 357, 399, 441, 476, 532, 588, 612, 646, 684, 714, 798, 833, 882, 931, 969, 1071, 1197, 1292, 1428, 1596, 1666, 1764, 1862, 1938, 2142, 2261, 2394, 2499, 2793, 2907, 3332, 3461, 3724, 3876, 4284, 4522, 4788, 4998, 5586, 5814, 6783, 6922, 7497, 8379, 9044, 9996, 10383, 11172, 11628, 13566, 13844, 14994, 15827, 16758, 20349, 20766, 24227, 27132, 29988, 31149, 31654, 33516, 40698, 41532, 47481, 48454, 58837, 62298, 63308, 65759, 72681, 81396, 94962, 96908, 117674, 124596, 131518, 142443, 145362, 169589, 176511, 189924, 197277, 218043, 235348, 263036, 284886, 290724, 339178, 353022, 394554, 411859, 436086, 460313, 508767, 529533, 569772, 591831, 678356, 706044, 789108, 823718, 872172, 920626, 1017534, 1059066, 1117903, 1183662, 1235577, 1380939, 1526301, 1647436, 1841252, 2035068, 2118132, 2235806, 2367324, 2471154, 2761878, 2883013, 3052602, 3222191, 3353709, 3706731, 4142817, 4471612, 4942308, 5523756, 5766026, 6105204, 6444382, 6707418, 7413462, 7825321, 8285634, 8649039, 9666573, 10061127, 11532052, 12888764, 13414836, 14826924, 15650642, 16571268, 17298078, 19333146, 20122254, 23475963, 25947117, 28999719, 31301284, 34596156, 38666292, 40244508, 46951926, 51894234, 54777247, 57999438, 70427889, 93903852, 103788468, 109554494, 115998876, 140855778, 164331741, 219108988, 281711556, 328663482, 492995223, 657326964, 985990446, 1971980892]

約数ペア:

[(1, 1971980892), (2, 985990446), (3, 657326964), (4, 492995223), (6, 328663482), (7, 281711556), (9, 219108988), (12, 164331741), (14, 140855778), (17, 115998876), (18, 109554494), (19, 103788468), (21, 93903852), (28, 70427889), (34, 57999438), (36, 54777247), (38, 51894234), (42, 46951926), (49, 40244508), (51, 38666292), (57, 34596156), (63, 31301284), (68, 28999719), (76, 25947117), (84, 23475963), (98, 20122254), (102, 19333146), (114, 17298078), (119, 16571268), (126, 15650642), (133, 14826924), (147, 13414836), (153, 12888764), (171, 11532052), (196, 10061127), (204, 9666573), (228, 8649039), (238, 8285634), (252, 7825321), (266, 7413462), (294, 6707418), (306, 6444382), (323, 6105204), (342, 5766026), (357, 5523756), (399, 4942308), (441, 4471612), (476, 4142817), (532, 3706731), (588, 3353709), (612, 3222191), (646, 3052602), (684, 2883013), (714, 2761878), (798, 2471154), (833, 2367324), (882, 2235806), (931, 2118132), (969, 2035068), (1071, 1841252), (1197, 1647436), (1292, 1526301), (1428, 1380939), (1596, 1235577), (1666, 1183662), (1764, 1117903), (1862, 1059066), (1938, 1017534), (2142, 920626), (2261, 872172), (2394, 823718), (2499, 789108), (2793, 706044), (2907, 678356), (3332, 591831), (3461, 569772), (3724, 529533), (3876, 508767), (4284, 460313), (4522, 436086), (4788, 411859), (4998, 394554), (5586, 353022), (5814, 339178), (6783, 290724), (6922, 284886), (7497, 263036), (8379, 235348), (9044, 218043), (9996, 197277), (10383, 189924), (11172, 176511), (11628, 169589), (13566, 145362), (13844, 142443), (14994, 131518), (15827, 124596), (16758, 117674), (20349, 96908), (20766, 94962), (24227, 81396), (27132, 72681), (29988, 65759), (31149, 63308), (31654, 62298), (33516, 58837), (40698, 48454), (41532, 47481)]