1781879008

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19739}}^1$

素因数の和:19800

約数の個数: 96

約数和(自身を含む): 4457134080

約数和(自身を除く): 2675255072

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 224, 248, 364, 403, 416, 434, 496, 728, 806, 868, 992, 1456, 1612, 1736, 2821, 2912, 3224, 3472, 5642, 6448, 6944, 11284, 12896, 19739, 22568, 39478, 45136, 78956, 90272, 138173, 157912, 256607, 276346, 315824, 513214, 552692, 611909, 631648, 1026428, 1105384, 1223818, 1796249, 2052856, 2210768, 2447636, 3592498, 4105712, 4283363, 4421536, 4895272, 7184996, 7954817, 8211424, 8566726, 9790544, 14369992, 15909634, 17133452, 19581088, 28739984, 31819268, 34266904, 55683719, 57479968, 63638536, 68533808, 111367438, 127277072, 137067616, 222734876, 254554144, 445469752, 890939504, 1781879008]

約数ペア:

[(1, 1781879008), (2, 890939504), (4, 445469752), (7, 254554144), (8, 222734876), (13, 137067616), (14, 127277072), (16, 111367438), (26, 68533808), (28, 63638536), (31, 57479968), (32, 55683719), (52, 34266904), (56, 31819268), (62, 28739984), (91, 19581088), (104, 17133452), (112, 15909634), (124, 14369992), (182, 9790544), (208, 8566726), (217, 8211424), (224, 7954817), (248, 7184996), (364, 4895272), (403, 4421536), (416, 4283363), (434, 4105712), (496, 3592498), (728, 2447636), (806, 2210768), (868, 2052856), (992, 1796249), (1456, 1223818), (1612, 1105384), (1736, 1026428), (2821, 631648), (2912, 611909), (3224, 552692), (3472, 513214), (5642, 315824), (6448, 276346), (6944, 256607), (11284, 157912), (12896, 138173), (19739, 90272), (22568, 78956), (39478, 45136)]