638920656

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 240

約数和(自身を含む): 2137363200

約数和(自身を除く): 1498442544

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 17, 18, 22, 24, 27, 33, 34, 36, 44, 48, 51, 54, 66, 68, 72, 88, 99, 102, 108, 121, 132, 136, 144, 153, 176, 187, 198, 204, 216, 242, 264, 272, 297, 306, 363, 374, 396, 408, 432, 459, 484, 528, 561, 594, 612, 719, 726, 748, 792, 816, 918, 968, 1089, 1122, 1188, 1224, 1438, 1452, 1496, 1584, 1683, 1836, 1936, 2057, 2157, 2178, 2244, 2376, 2448, 2876, 2904, 2992, 3267, 3366, 3672, 4114, 4314, 4356, 4488, 4752, 5049, 5752, 5808, 6171, 6471, 6534, 6732, 7344, 7909, 8228, 8628, 8712, 8976, 10098, 11504, 12223, 12342, 12942, 13068, 13464, 15818, 16456, 17256, 17424, 18513, 19413, 20196, 23727, 24446, 24684, 25884, 26136, 26928, 31636, 32912, 34512, 36669, 37026, 38826, 40392, 47454, 48892, 49368, 51768, 52272, 55539, 63272, 71181, 73338, 74052, 77652, 80784, 86999, 94908, 97784, 98736, 103536, 110007, 111078, 126544, 134453, 142362, 146676, 148104, 155304, 173998, 189816, 195568, 213543, 220014, 222156, 260997, 268906, 284724, 293352, 296208, 310608, 330021, 347996, 379632, 403359, 427086, 440028, 444312, 521994, 537812, 569448, 586704, 660042, 695992, 782991, 806718, 854172, 880056, 888624, 1043988, 1075624, 1138896, 1210077, 1320084, 1391984, 1478983, 1565982, 1613436, 1708344, 1760112, 2087976, 2151248, 2348973, 2420154, 2640168, 2957966, 3131964, 3226872, 3416688, 3630231, 4175952, 4436949, 4697946, 4840308, 5280336, 5915932, 6263928, 6453744, 7260462, 8873898, 9395892, 9680616, 11831864, 12527856, 13310847, 14520924, 17747796, 18791784, 19361232, 23663728, 26621694, 29041848, 35495592, 37583568, 39932541, 53243388, 58083696, 70991184, 79865082, 106486776, 159730164, 212973552, 319460328, 638920656]

約数ペア:

[(1, 638920656), (2, 319460328), (3, 212973552), (4, 159730164), (6, 106486776), (8, 79865082), (9, 70991184), (11, 58083696), (12, 53243388), (16, 39932541), (17, 37583568), (18, 35495592), (22, 29041848), (24, 26621694), (27, 23663728), (33, 19361232), (34, 18791784), (36, 17747796), (44, 14520924), (48, 13310847), (51, 12527856), (54, 11831864), (66, 9680616), (68, 9395892), (72, 8873898), (88, 7260462), (99, 6453744), (102, 6263928), (108, 5915932), (121, 5280336), (132, 4840308), (136, 4697946), (144, 4436949), (153, 4175952), (176, 3630231), (187, 3416688), (198, 3226872), (204, 3131964), (216, 2957966), (242, 2640168), (264, 2420154), (272, 2348973), (297, 2151248), (306, 2087976), (363, 1760112), (374, 1708344), (396, 1613436), (408, 1565982), (432, 1478983), (459, 1391984), (484, 1320084), (528, 1210077), (561, 1138896), (594, 1075624), (612, 1043988), (719, 888624), (726, 880056), (748, 854172), (792, 806718), (816, 782991), (918, 695992), (968, 660042), (1089, 586704), (1122, 569448), (1188, 537812), (1224, 521994), (1438, 444312), (1452, 440028), (1496, 427086), (1584, 403359), (1683, 379632), (1836, 347996), (1936, 330021), (2057, 310608), (2157, 296208), (2178, 293352), (2244, 284724), (2376, 268906), (2448, 260997), (2876, 222156), (2904, 220014), (2992, 213543), (3267, 195568), (3366, 189816), (3672, 173998), (4114, 155304), (4314, 148104), (4356, 146676), (4488, 142362), (4752, 134453), (5049, 126544), (5752, 111078), (5808, 110007), (6171, 103536), (6471, 98736), (6534, 97784), (6732, 94908), (7344, 86999), (7909, 80784), (8228, 77652), (8628, 74052), (8712, 73338), (8976, 71181), (10098, 63272), (11504, 55539), (12223, 52272), (12342, 51768), (12942, 49368), (13068, 48892), (13464, 47454), (15818, 40392), (16456, 38826), (17256, 37026), (17424, 36669), (18513, 34512), (19413, 32912), (20196, 31636), (23727, 26928), (24446, 26136), (24684, 25884)]