257377120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1607}}^1$

素因数の和:1653

約数の個数: 192

約数和(自身を含む): 816915456

約数和(自身を除く): 559538336

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 280, 286, 308, 352, 364, 385, 416, 440, 455, 520, 560, 572, 616, 715, 728, 770, 880, 910, 1001, 1040, 1120, 1144, 1232, 1430, 1456, 1540, 1607, 1760, 1820, 2002, 2080, 2288, 2464, 2860, 2912, 3080, 3214, 3640, 4004, 4576, 5005, 5720, 6160, 6428, 7280, 8008, 8035, 10010, 11249, 11440, 12320, 12856, 14560, 16016, 16070, 17677, 20020, 20891, 22498, 22880, 25712, 32032, 32140, 35354, 40040, 41782, 44996, 51424, 56245, 64280, 70708, 80080, 83564, 88385, 89992, 104455, 112490, 123739, 128560, 141416, 146237, 160160, 167128, 176770, 179984, 208910, 224980, 229801, 247478, 257120, 282832, 292474, 334256, 353540, 359968, 417820, 449960, 459602, 494956, 565664, 584948, 618695, 668512, 707080, 731185, 835640, 899920, 919204, 989912, 1149005, 1169896, 1237390, 1414160, 1462370, 1608607, 1671280, 1799840, 1838408, 1979824, 2298010, 2339792, 2474780, 2828320, 2924740, 3217214, 3342560, 3676816, 3959648, 4596020, 4679584, 4949560, 5849480, 6434428, 7353632, 8043035, 9192040, 9899120, 11698960, 12868856, 16086070, 18384080, 19798240, 23397920, 25737712, 32172140, 36768160, 51475424, 64344280, 128688560, 257377120]

約数ペア:

[(1, 257377120), (2, 128688560), (4, 64344280), (5, 51475424), (7, 36768160), (8, 32172140), (10, 25737712), (11, 23397920), (13, 19798240), (14, 18384080), (16, 16086070), (20, 12868856), (22, 11698960), (26, 9899120), (28, 9192040), (32, 8043035), (35, 7353632), (40, 6434428), (44, 5849480), (52, 4949560), (55, 4679584), (56, 4596020), (65, 3959648), (70, 3676816), (77, 3342560), (80, 3217214), (88, 2924740), (91, 2828320), (104, 2474780), (110, 2339792), (112, 2298010), (130, 1979824), (140, 1838408), (143, 1799840), (154, 1671280), (160, 1608607), (176, 1462370), (182, 1414160), (208, 1237390), (220, 1169896), (224, 1149005), (260, 989912), (280, 919204), (286, 899920), (308, 835640), (352, 731185), (364, 707080), (385, 668512), (416, 618695), (440, 584948), (455, 565664), (520, 494956), (560, 459602), (572, 449960), (616, 417820), (715, 359968), (728, 353540), (770, 334256), (880, 292474), (910, 282832), (1001, 257120), (1040, 247478), (1120, 229801), (1144, 224980), (1232, 208910), (1430, 179984), (1456, 176770), (1540, 167128), (1607, 160160), (1760, 146237), (1820, 141416), (2002, 128560), (2080, 123739), (2288, 112490), (2464, 104455), (2860, 89992), (2912, 88385), (3080, 83564), (3214, 80080), (3640, 70708), (4004, 64280), (4576, 56245), (5005, 51424), (5720, 44996), (6160, 41782), (6428, 40040), (7280, 35354), (8008, 32140), (8035, 32032), (10010, 25712), (11249, 22880), (11440, 22498), (12320, 20891), (12856, 20020), (14560, 17677), (16016, 16070)]