257913552

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 160

約数和(自身を含む): 755507200

約数和(自身を除く): 497593648

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 67, 78, 93, 104, 124, 134, 156, 186, 199, 201, 208, 248, 268, 312, 372, 398, 402, 403, 496, 536, 597, 624, 744, 796, 804, 806, 871, 1072, 1194, 1209, 1488, 1592, 1608, 1612, 1742, 2077, 2388, 2418, 2587, 2613, 3184, 3216, 3224, 3484, 4154, 4776, 4836, 5174, 5226, 6169, 6231, 6448, 6968, 7761, 8308, 9552, 9672, 10348, 10452, 12338, 12462, 13333, 13936, 15522, 16616, 18507, 19344, 20696, 20904, 24676, 24924, 26666, 27001, 31044, 33232, 37014, 39999, 41392, 41808, 49352, 49848, 53332, 54002, 62088, 74028, 79998, 80197, 81003, 98704, 99696, 106664, 108004, 124176, 148056, 159996, 160394, 162006, 173329, 213328, 216008, 240591, 296112, 319992, 320788, 324012, 346658, 413323, 432016, 481182, 519987, 639984, 641576, 648024, 693316, 826646, 962364, 1039974, 1239969, 1283152, 1296048, 1386632, 1653292, 1924728, 2079948, 2479938, 2773264, 3306584, 3849456, 4159896, 4959876, 5373199, 6613168, 8319792, 9919752, 10746398, 16119597, 19839504, 21492796, 32239194, 42985592, 64478388, 85971184, 128956776, 257913552]

約数ペア:

[(1, 257913552), (2, 128956776), (3, 85971184), (4, 64478388), (6, 42985592), (8, 32239194), (12, 21492796), (13, 19839504), (16, 16119597), (24, 10746398), (26, 9919752), (31, 8319792), (39, 6613168), (48, 5373199), (52, 4959876), (62, 4159896), (67, 3849456), (78, 3306584), (93, 2773264), (104, 2479938), (124, 2079948), (134, 1924728), (156, 1653292), (186, 1386632), (199, 1296048), (201, 1283152), (208, 1239969), (248, 1039974), (268, 962364), (312, 826646), (372, 693316), (398, 648024), (402, 641576), (403, 639984), (496, 519987), (536, 481182), (597, 432016), (624, 413323), (744, 346658), (796, 324012), (804, 320788), (806, 319992), (871, 296112), (1072, 240591), (1194, 216008), (1209, 213328), (1488, 173329), (1592, 162006), (1608, 160394), (1612, 159996), (1742, 148056), (2077, 124176), (2388, 108004), (2418, 106664), (2587, 99696), (2613, 98704), (3184, 81003), (3216, 80197), (3224, 79998), (3484, 74028), (4154, 62088), (4776, 54002), (4836, 53332), (5174, 49848), (5226, 49352), (6169, 41808), (6231, 41392), (6448, 39999), (6968, 37014), (7761, 33232), (8308, 31044), (9552, 27001), (9672, 26666), (10348, 24924), (10452, 24676), (12338, 20904), (12462, 20696), (13333, 19344), (13936, 18507), (15522, 16616)]