256313610

素因数分解:

$2^1\times 3^2\times 5^1\times 7^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:95

約数の個数: 288

約数和(自身を含む): 855878400

約数和(自身を除く): 599564790

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 23, 30, 35, 38, 42, 45, 46, 49, 57, 63, 69, 70, 90, 95, 98, 105, 114, 115, 126, 133, 138, 147, 161, 171, 190, 207, 210, 230, 245, 266, 285, 294, 315, 322, 342, 343, 345, 361, 399, 414, 437, 441, 483, 490, 570, 630, 665, 686, 690, 722, 735, 798, 805, 855, 874, 882, 931, 966, 1029, 1035, 1083, 1127, 1197, 1311, 1330, 1449, 1470, 1610, 1710, 1715, 1805, 1862, 1995, 2058, 2070, 2166, 2185, 2205, 2254, 2394, 2415, 2527, 2622, 2793, 2898, 3059, 3087, 3249, 3381, 3430, 3610, 3933, 3990, 4370, 4410, 4655, 4830, 5054, 5145, 5415, 5586, 5635, 5985, 6118, 6174, 6498, 6517, 6555, 6762, 7245, 7581, 7866, 7889, 8303, 8379, 9177, 9310, 10143, 10290, 10830, 11270, 11970, 12635, 13034, 13110, 13965, 14490, 15162, 15295, 15435, 15778, 16245, 16606, 16758, 16905, 17689, 18354, 19551, 19665, 20286, 21413, 22743, 23667, 24909, 25270, 27531, 27930, 30590, 30870, 32490, 32585, 33810, 35378, 37905, 39102, 39330, 39445, 41515, 41895, 42826, 45486, 45885, 47334, 49818, 50715, 53067, 55062, 58121, 58653, 64239, 65170, 71001, 74727, 75810, 78890, 83030, 83790, 88445, 91770, 97755, 101430, 106134, 107065, 113715, 116242, 117306, 118335, 123823, 124545, 128478, 137655, 142002, 149454, 149891, 159201, 174363, 176890, 192717, 195510, 214130, 227430, 236670, 247646, 249090, 265335, 275310, 290605, 293265, 299782, 318402, 321195, 348726, 355005, 371469, 373635, 385434, 406847, 449673, 523089, 530670, 581210, 586530, 619115, 642390, 710010, 742938, 747270, 749455, 796005, 813694, 871815, 899346, 963585, 1046178, 1114407, 1220541, 1238230, 1349019, 1498910, 1592010, 1743630, 1857345, 1927170, 2034235, 2228814, 2248365, 2441082, 2615445, 2698038, 2847929, 3661623, 3714690, 4068470, 4496730, 5230890, 5572035, 5695858, 6102705, 6745095, 7323246, 8543787, 11144070, 12205410, 13490190, 14239645, 17087574, 18308115, 25631361, 28479290, 36616230, 42718935, 51262722, 85437870, 128156805, 256313610]

約数ペア:

[(1, 256313610), (2, 128156805), (3, 85437870), (5, 51262722), (6, 42718935), (7, 36616230), (9, 28479290), (10, 25631361), (14, 18308115), (15, 17087574), (18, 14239645), (19, 13490190), (21, 12205410), (23, 11144070), (30, 8543787), (35, 7323246), (38, 6745095), (42, 6102705), (45, 5695858), (46, 5572035), (49, 5230890), (57, 4496730), (63, 4068470), (69, 3714690), (70, 3661623), (90, 2847929), (95, 2698038), (98, 2615445), (105, 2441082), (114, 2248365), (115, 2228814), (126, 2034235), (133, 1927170), (138, 1857345), (147, 1743630), (161, 1592010), (171, 1498910), (190, 1349019), (207, 1238230), (210, 1220541), (230, 1114407), (245, 1046178), (266, 963585), (285, 899346), (294, 871815), (315, 813694), (322, 796005), (342, 749455), (343, 747270), (345, 742938), (361, 710010), (399, 642390), (414, 619115), (437, 586530), (441, 581210), (483, 530670), (490, 523089), (570, 449673), (630, 406847), (665, 385434), (686, 373635), (690, 371469), (722, 355005), (735, 348726), (798, 321195), (805, 318402), (855, 299782), (874, 293265), (882, 290605), (931, 275310), (966, 265335), (1029, 249090), (1035, 247646), (1083, 236670), (1127, 227430), (1197, 214130), (1311, 195510), (1330, 192717), (1449, 176890), (1470, 174363), (1610, 159201), (1710, 149891), (1715, 149454), (1805, 142002), (1862, 137655), (1995, 128478), (2058, 124545), (2070, 123823), (2166, 118335), (2185, 117306), (2205, 116242), (2254, 113715), (2394, 107065), (2415, 106134), (2527, 101430), (2622, 97755), (2793, 91770), (2898, 88445), (3059, 83790), (3087, 83030), (3249, 78890), (3381, 75810), (3430, 74727), (3610, 71001), (3933, 65170), (3990, 64239), (4370, 58653), (4410, 58121), (4655, 55062), (4830, 53067), (5054, 50715), (5145, 49818), (5415, 47334), (5586, 45885), (5635, 45486), (5985, 42826), (6118, 41895), (6174, 41515), (6498, 39445), (6517, 39330), (6555, 39102), (6762, 37905), (7245, 35378), (7581, 33810), (7866, 32585), (7889, 32490), (8303, 30870), (8379, 30590), (9177, 27930), (9310, 27531), (10143, 25270), (10290, 24909), (10830, 23667), (11270, 22743), (11970, 21413), (12635, 20286), (13034, 19665), (13110, 19551), (13965, 18354), (14490, 17689), (15162, 16905), (15295, 16758), (15435, 16606), (15778, 16245)]