257589540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:179

約数の個数: 288

約数和(自身を含む): 898200576

約数和(自身を除く): 640611036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 53, 60, 62, 65, 67, 78, 90, 93, 106, 117, 124, 130, 134, 155, 156, 159, 180, 186, 195, 201, 212, 234, 260, 265, 268, 279, 310, 318, 335, 372, 390, 402, 403, 465, 468, 477, 530, 558, 585, 603, 620, 636, 670, 689, 780, 795, 804, 806, 871, 930, 954, 1005, 1060, 1116, 1170, 1206, 1209, 1340, 1378, 1395, 1590, 1612, 1643, 1742, 1860, 1908, 2010, 2015, 2067, 2077, 2340, 2385, 2412, 2418, 2613, 2756, 2790, 3015, 3180, 3286, 3445, 3484, 3551, 3627, 4020, 4030, 4134, 4154, 4355, 4770, 4836, 4929, 5226, 5580, 6030, 6045, 6201, 6231, 6572, 6890, 7102, 7254, 7839, 8060, 8215, 8268, 8308, 8710, 9540, 9858, 10335, 10385, 10452, 10653, 12060, 12090, 12402, 12462, 13065, 13780, 14204, 14508, 14787, 15678, 16430, 17420, 17755, 18135, 18693, 19716, 20670, 20770, 21306, 21359, 24180, 24645, 24804, 24924, 26130, 27001, 29574, 31005, 31155, 31356, 31959, 32860, 35510, 36270, 37386, 39195, 41340, 41540, 42612, 42718, 46163, 49290, 52260, 53265, 54002, 59148, 62010, 62310, 63918, 64077, 71020, 72540, 73935, 74772, 78390, 81003, 85436, 92326, 93465, 98580, 106530, 106795, 108004, 110081, 124020, 124620, 127836, 128154, 135005, 138489, 147870, 156780, 159795, 162006, 184652, 186930, 192231, 213060, 213590, 220162, 230815, 243009, 256308, 270010, 276978, 295740, 319590, 320385, 324012, 330243, 373860, 384462, 405015, 415467, 427180, 440324, 461630, 486018, 540020, 550405, 553956, 639180, 640770, 660486, 692445, 768924, 810030, 830934, 923260, 961155, 972036, 990729, 1100810, 1215045, 1281540, 1320972, 1384890, 1431053, 1620060, 1651215, 1661868, 1922310, 1981458, 2077335, 2201620, 2430090, 2769780, 2862106, 3302430, 3844620, 3962916, 4154670, 4293159, 4860180, 4953645, 5724212, 6604860, 7155265, 8309340, 8586318, 9907290, 12879477, 14310530, 17172636, 19814580, 21465795, 25758954, 28621060, 42931590, 51517908, 64397385, 85863180, 128794770, 257589540]

約数ペア:

[(1, 257589540), (2, 128794770), (3, 85863180), (4, 64397385), (5, 51517908), (6, 42931590), (9, 28621060), (10, 25758954), (12, 21465795), (13, 19814580), (15, 17172636), (18, 14310530), (20, 12879477), (26, 9907290), (30, 8586318), (31, 8309340), (36, 7155265), (39, 6604860), (45, 5724212), (52, 4953645), (53, 4860180), (60, 4293159), (62, 4154670), (65, 3962916), (67, 3844620), (78, 3302430), (90, 2862106), (93, 2769780), (106, 2430090), (117, 2201620), (124, 2077335), (130, 1981458), (134, 1922310), (155, 1661868), (156, 1651215), (159, 1620060), (180, 1431053), (186, 1384890), (195, 1320972), (201, 1281540), (212, 1215045), (234, 1100810), (260, 990729), (265, 972036), (268, 961155), (279, 923260), (310, 830934), (318, 810030), (335, 768924), (372, 692445), (390, 660486), (402, 640770), (403, 639180), (465, 553956), (468, 550405), (477, 540020), (530, 486018), (558, 461630), (585, 440324), (603, 427180), (620, 415467), (636, 405015), (670, 384462), (689, 373860), (780, 330243), (795, 324012), (804, 320385), (806, 319590), (871, 295740), (930, 276978), (954, 270010), (1005, 256308), (1060, 243009), (1116, 230815), (1170, 220162), (1206, 213590), (1209, 213060), (1340, 192231), (1378, 186930), (1395, 184652), (1590, 162006), (1612, 159795), (1643, 156780), (1742, 147870), (1860, 138489), (1908, 135005), (2010, 128154), (2015, 127836), (2067, 124620), (2077, 124020), (2340, 110081), (2385, 108004), (2412, 106795), (2418, 106530), (2613, 98580), (2756, 93465), (2790, 92326), (3015, 85436), (3180, 81003), (3286, 78390), (3445, 74772), (3484, 73935), (3551, 72540), (3627, 71020), (4020, 64077), (4030, 63918), (4134, 62310), (4154, 62010), (4355, 59148), (4770, 54002), (4836, 53265), (4929, 52260), (5226, 49290), (5580, 46163), (6030, 42718), (6045, 42612), (6201, 41540), (6231, 41340), (6572, 39195), (6890, 37386), (7102, 36270), (7254, 35510), (7839, 32860), (8060, 31959), (8215, 31356), (8268, 31155), (8308, 31005), (8710, 29574), (9540, 27001), (9858, 26130), (10335, 24924), (10385, 24804), (10452, 24645), (10653, 24180), (12060, 21359), (12090, 21306), (12402, 20770), (12462, 20670), (13065, 19716), (13780, 18693), (14204, 18135), (14508, 17755), (14787, 17420), (15678, 16430)]