218947120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 617103360

約数和(自身を除く): 398156240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 89, 92, 112, 115, 140, 161, 178, 184, 191, 230, 280, 322, 356, 368, 382, 445, 460, 560, 623, 644, 712, 764, 805, 890, 920, 955, 1246, 1288, 1337, 1424, 1528, 1610, 1780, 1840, 1910, 2047, 2492, 2576, 2674, 3056, 3115, 3220, 3560, 3820, 4094, 4393, 4984, 5348, 6230, 6440, 6685, 7120, 7640, 8188, 8786, 9968, 10235, 10696, 12460, 12880, 13370, 14329, 15280, 16376, 16999, 17572, 20470, 21392, 21965, 24920, 26740, 28658, 30751, 32752, 33998, 35144, 40940, 43930, 49840, 53480, 57316, 61502, 67996, 70288, 71645, 81880, 84995, 87860, 106960, 114632, 118993, 123004, 135992, 143290, 153755, 163760, 169990, 175720, 229264, 237986, 246008, 271984, 286580, 307510, 339980, 351440, 390977, 475972, 492016, 573160, 594965, 615020, 679960, 781954, 951944, 1146320, 1189930, 1230040, 1359920, 1563908, 1903888, 1954885, 2379860, 2460080, 2736839, 3127816, 3909770, 4759720, 5473678, 6255632, 7819540, 9519440, 10947356, 13684195, 15639080, 21894712, 27368390, 31278160, 43789424, 54736780, 109473560, 218947120]

約数ペア:

[(1, 218947120), (2, 109473560), (4, 54736780), (5, 43789424), (7, 31278160), (8, 27368390), (10, 21894712), (14, 15639080), (16, 13684195), (20, 10947356), (23, 9519440), (28, 7819540), (35, 6255632), (40, 5473678), (46, 4759720), (56, 3909770), (70, 3127816), (80, 2736839), (89, 2460080), (92, 2379860), (112, 1954885), (115, 1903888), (140, 1563908), (161, 1359920), (178, 1230040), (184, 1189930), (191, 1146320), (230, 951944), (280, 781954), (322, 679960), (356, 615020), (368, 594965), (382, 573160), (445, 492016), (460, 475972), (560, 390977), (623, 351440), (644, 339980), (712, 307510), (764, 286580), (805, 271984), (890, 246008), (920, 237986), (955, 229264), (1246, 175720), (1288, 169990), (1337, 163760), (1424, 153755), (1528, 143290), (1610, 135992), (1780, 123004), (1840, 118993), (1910, 114632), (2047, 106960), (2492, 87860), (2576, 84995), (2674, 81880), (3056, 71645), (3115, 70288), (3220, 67996), (3560, 61502), (3820, 57316), (4094, 53480), (4393, 49840), (4984, 43930), (5348, 40940), (6230, 35144), (6440, 33998), (6685, 32752), (7120, 30751), (7640, 28658), (8188, 26740), (8786, 24920), (9968, 21965), (10235, 21392), (10696, 20470), (12460, 17572), (12880, 16999), (13370, 16376), (14329, 15280)]