178964240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 240

約数和(自身を含む): 540251136

約数和(自身を除く): 361286896

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 52, 56, 61, 62, 65, 70, 80, 91, 104, 112, 122, 124, 130, 140, 155, 169, 182, 208, 217, 244, 248, 260, 280, 305, 310, 338, 364, 403, 427, 434, 455, 488, 496, 520, 560, 610, 620, 676, 728, 793, 806, 845, 854, 868, 910, 976, 1040, 1085, 1183, 1220, 1240, 1352, 1456, 1586, 1612, 1690, 1708, 1736, 1820, 1891, 2015, 2135, 2170, 2366, 2440, 2480, 2704, 2821, 3172, 3224, 3380, 3416, 3472, 3640, 3782, 3965, 4030, 4270, 4340, 4732, 4880, 5239, 5551, 5642, 5915, 6344, 6448, 6760, 6832, 7280, 7564, 7930, 8060, 8540, 8680, 9455, 9464, 10309, 10478, 11102, 11284, 11830, 12688, 13237, 13520, 14105, 15128, 15860, 16120, 17080, 17360, 18910, 18928, 20618, 20956, 22204, 22568, 23660, 24583, 26195, 26474, 27755, 28210, 30256, 31720, 32240, 34160, 36673, 37820, 41236, 41912, 44408, 45136, 47320, 49166, 51545, 52390, 52948, 55510, 56420, 63440, 66185, 72163, 73346, 75640, 82472, 83824, 88816, 94640, 98332, 103090, 104780, 105896, 111020, 112840, 122915, 132370, 144326, 146692, 151280, 164944, 172081, 183365, 196664, 206180, 209560, 211792, 222040, 225680, 245830, 264740, 288652, 293384, 319579, 344162, 360815, 366730, 393328, 412360, 419120, 444080, 491660, 529480, 577304, 586768, 639158, 688324, 721630, 733460, 824720, 860405, 983320, 1058960, 1154608, 1278316, 1376648, 1443260, 1466920, 1597895, 1720810, 1966640, 2237053, 2556632, 2753296, 2886520, 2933840, 3195790, 3441620, 4474106, 5113264, 5773040, 6391580, 6883240, 8948212, 11185265, 12783160, 13766480, 17896424, 22370530, 25566320, 35792848, 44741060, 89482120, 178964240]

約数ペア:

[(1, 178964240), (2, 89482120), (4, 44741060), (5, 35792848), (7, 25566320), (8, 22370530), (10, 17896424), (13, 13766480), (14, 12783160), (16, 11185265), (20, 8948212), (26, 6883240), (28, 6391580), (31, 5773040), (35, 5113264), (40, 4474106), (52, 3441620), (56, 3195790), (61, 2933840), (62, 2886520), (65, 2753296), (70, 2556632), (80, 2237053), (91, 1966640), (104, 1720810), (112, 1597895), (122, 1466920), (124, 1443260), (130, 1376648), (140, 1278316), (155, 1154608), (169, 1058960), (182, 983320), (208, 860405), (217, 824720), (244, 733460), (248, 721630), (260, 688324), (280, 639158), (305, 586768), (310, 577304), (338, 529480), (364, 491660), (403, 444080), (427, 419120), (434, 412360), (455, 393328), (488, 366730), (496, 360815), (520, 344162), (560, 319579), (610, 293384), (620, 288652), (676, 264740), (728, 245830), (793, 225680), (806, 222040), (845, 211792), (854, 209560), (868, 206180), (910, 196664), (976, 183365), (1040, 172081), (1085, 164944), (1183, 151280), (1220, 146692), (1240, 144326), (1352, 132370), (1456, 122915), (1586, 112840), (1612, 111020), (1690, 105896), (1708, 104780), (1736, 103090), (1820, 98332), (1891, 94640), (2015, 88816), (2135, 83824), (2170, 82472), (2366, 75640), (2440, 73346), (2480, 72163), (2704, 66185), (2821, 63440), (3172, 56420), (3224, 55510), (3380, 52948), (3416, 52390), (3472, 51545), (3640, 49166), (3782, 47320), (3965, 45136), (4030, 44408), (4270, 41912), (4340, 41236), (4732, 37820), (4880, 36673), (5239, 34160), (5551, 32240), (5642, 31720), (5915, 30256), (6344, 28210), (6448, 27755), (6760, 26474), (6832, 26195), (7280, 24583), (7564, 23660), (7930, 22568), (8060, 22204), (8540, 20956), (8680, 20618), (9455, 18928), (9464, 18910), (10309, 17360), (10478, 17080), (11102, 16120), (11284, 15860), (11830, 15128), (12688, 14105), (13237, 13520)]