28256800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 216

約数和(自身を含む): 85775760

約数和(自身を除く): 57518960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 25, 26, 32, 38, 40, 44, 50, 52, 55, 65, 76, 80, 88, 95, 100, 104, 110, 130, 143, 152, 160, 169, 176, 190, 200, 208, 209, 220, 247, 260, 275, 286, 304, 325, 338, 352, 380, 400, 416, 418, 440, 475, 494, 520, 550, 572, 608, 650, 676, 715, 760, 800, 836, 845, 880, 950, 988, 1040, 1045, 1100, 1144, 1235, 1300, 1352, 1430, 1520, 1672, 1690, 1760, 1859, 1900, 1976, 2080, 2090, 2200, 2288, 2470, 2600, 2704, 2717, 2860, 3040, 3211, 3344, 3380, 3575, 3718, 3800, 3952, 4180, 4225, 4400, 4576, 4940, 5200, 5225, 5408, 5434, 5720, 6175, 6422, 6688, 6760, 7150, 7436, 7600, 7904, 8360, 8450, 8800, 9295, 9880, 10400, 10450, 10868, 11440, 12350, 12844, 13520, 13585, 14300, 14872, 15200, 16055, 16720, 16900, 18590, 19760, 20900, 21736, 22880, 24700, 25688, 27040, 27170, 28600, 29744, 32110, 33440, 33800, 35321, 37180, 39520, 41800, 43472, 46475, 49400, 51376, 54340, 57200, 59488, 64220, 67600, 67925, 70642, 74360, 80275, 83600, 86944, 92950, 98800, 102752, 108680, 114400, 128440, 135200, 135850, 141284, 148720, 160550, 167200, 176605, 185900, 197600, 217360, 256880, 271700, 282568, 297440, 321100, 353210, 371800, 434720, 513760, 543400, 565136, 642200, 706420, 743600, 883025, 1086800, 1130272, 1284400, 1412840, 1487200, 1766050, 2173600, 2568800, 2825680, 3532100, 5651360, 7064200, 14128400, 28256800]

約数ペア:

[(1, 28256800), (2, 14128400), (4, 7064200), (5, 5651360), (8, 3532100), (10, 2825680), (11, 2568800), (13, 2173600), (16, 1766050), (19, 1487200), (20, 1412840), (22, 1284400), (25, 1130272), (26, 1086800), (32, 883025), (38, 743600), (40, 706420), (44, 642200), (50, 565136), (52, 543400), (55, 513760), (65, 434720), (76, 371800), (80, 353210), (88, 321100), (95, 297440), (100, 282568), (104, 271700), (110, 256880), (130, 217360), (143, 197600), (152, 185900), (160, 176605), (169, 167200), (176, 160550), (190, 148720), (200, 141284), (208, 135850), (209, 135200), (220, 128440), (247, 114400), (260, 108680), (275, 102752), (286, 98800), (304, 92950), (325, 86944), (338, 83600), (352, 80275), (380, 74360), (400, 70642), (416, 67925), (418, 67600), (440, 64220), (475, 59488), (494, 57200), (520, 54340), (550, 51376), (572, 49400), (608, 46475), (650, 43472), (676, 41800), (715, 39520), (760, 37180), (800, 35321), (836, 33800), (845, 33440), (880, 32110), (950, 29744), (988, 28600), (1040, 27170), (1045, 27040), (1100, 25688), (1144, 24700), (1235, 22880), (1300, 21736), (1352, 20900), (1430, 19760), (1520, 18590), (1672, 16900), (1690, 16720), (1760, 16055), (1859, 15200), (1900, 14872), (1976, 14300), (2080, 13585), (2090, 13520), (2200, 12844), (2288, 12350), (2470, 11440), (2600, 10868), (2704, 10450), (2717, 10400), (2860, 9880), (3040, 9295), (3211, 8800), (3344, 8450), (3380, 8360), (3575, 7904), (3718, 7600), (3800, 7436), (3952, 7150), (4180, 6760), (4225, 6688), (4400, 6422), (4576, 6175), (4940, 5720), (5200, 5434), (5225, 5408)]