256637160

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{677}}^1$

素因数の和:719

約数の個数: 224

約数和(自身を含む): 933728040

約数和(自身を除く): 677090880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 243, 260, 270, 312, 324, 351, 360, 390, 405, 468, 486, 520, 540, 585, 648, 677, 702, 729, 780, 810, 936, 972, 1053, 1080, 1170, 1215, 1354, 1404, 1458, 1560, 1620, 1755, 1944, 2031, 2106, 2340, 2430, 2708, 2808, 2916, 3159, 3240, 3385, 3510, 3645, 4062, 4212, 4680, 4860, 5265, 5416, 5832, 6093, 6318, 6770, 7020, 7290, 8124, 8424, 8801, 9477, 9720, 10155, 10530, 12186, 12636, 13540, 14040, 14580, 15795, 16248, 17602, 18279, 18954, 20310, 21060, 24372, 25272, 26403, 27080, 29160, 30465, 31590, 35204, 36558, 37908, 40620, 42120, 44005, 47385, 48744, 52806, 54837, 60930, 63180, 70408, 73116, 75816, 79209, 81240, 88010, 91395, 94770, 105612, 109674, 121860, 126360, 132015, 146232, 158418, 164511, 176020, 182790, 189540, 211224, 219348, 237627, 243720, 264030, 274185, 316836, 329022, 352040, 365580, 379080, 396045, 438696, 475254, 493533, 528060, 548370, 633672, 658044, 712881, 731160, 792090, 822555, 950508, 987066, 1056120, 1096740, 1188135, 1316088, 1425762, 1584180, 1645110, 1901016, 1974132, 2138643, 2193480, 2376270, 2467665, 2851524, 3168360, 3290220, 3564405, 3948264, 4277286, 4752540, 4935330, 5703048, 6415929, 6580440, 7128810, 8554572, 9505080, 9870660, 10693215, 12831858, 14257620, 17109144, 19741320, 21386430, 25663716, 28515240, 32079645, 42772860, 51327432, 64159290, 85545720, 128318580, 256637160]

約数ペア:

[(1, 256637160), (2, 128318580), (3, 85545720), (4, 64159290), (5, 51327432), (6, 42772860), (8, 32079645), (9, 28515240), (10, 25663716), (12, 21386430), (13, 19741320), (15, 17109144), (18, 14257620), (20, 12831858), (24, 10693215), (26, 9870660), (27, 9505080), (30, 8554572), (36, 7128810), (39, 6580440), (40, 6415929), (45, 5703048), (52, 4935330), (54, 4752540), (60, 4277286), (65, 3948264), (72, 3564405), (78, 3290220), (81, 3168360), (90, 2851524), (104, 2467665), (108, 2376270), (117, 2193480), (120, 2138643), (130, 1974132), (135, 1901016), (156, 1645110), (162, 1584180), (180, 1425762), (195, 1316088), (216, 1188135), (234, 1096740), (243, 1056120), (260, 987066), (270, 950508), (312, 822555), (324, 792090), (351, 731160), (360, 712881), (390, 658044), (405, 633672), (468, 548370), (486, 528060), (520, 493533), (540, 475254), (585, 438696), (648, 396045), (677, 379080), (702, 365580), (729, 352040), (780, 329022), (810, 316836), (936, 274185), (972, 264030), (1053, 243720), (1080, 237627), (1170, 219348), (1215, 211224), (1354, 189540), (1404, 182790), (1458, 176020), (1560, 164511), (1620, 158418), (1755, 146232), (1944, 132015), (2031, 126360), (2106, 121860), (2340, 109674), (2430, 105612), (2708, 94770), (2808, 91395), (2916, 88010), (3159, 81240), (3240, 79209), (3385, 75816), (3510, 73116), (3645, 70408), (4062, 63180), (4212, 60930), (4680, 54837), (4860, 52806), (5265, 48744), (5416, 47385), (5832, 44005), (6093, 42120), (6318, 40620), (6770, 37908), (7020, 36558), (7290, 35204), (8124, 31590), (8424, 30465), (8801, 29160), (9477, 27080), (9720, 26403), (10155, 25272), (10530, 24372), (12186, 21060), (12636, 20310), (13540, 18954), (14040, 18279), (14580, 17602), (15795, 16248)]