257956920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1019

約数の個数: 256

約数和(自身を含む): 975744000

約数和(自身を除く): 717787080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 27, 30, 36, 38, 39, 40, 45, 52, 54, 57, 60, 65, 72, 76, 78, 90, 95, 104, 108, 114, 117, 120, 130, 135, 152, 156, 171, 180, 190, 195, 216, 228, 234, 247, 260, 270, 285, 312, 342, 351, 360, 380, 390, 456, 468, 494, 513, 520, 540, 570, 585, 684, 702, 741, 760, 780, 855, 936, 967, 988, 1026, 1080, 1140, 1170, 1235, 1368, 1404, 1482, 1560, 1710, 1755, 1934, 1976, 2052, 2223, 2280, 2340, 2470, 2565, 2808, 2901, 2964, 3420, 3510, 3705, 3868, 4104, 4446, 4680, 4835, 4940, 5130, 5802, 5928, 6669, 6840, 7020, 7410, 7736, 8703, 8892, 9670, 9880, 10260, 11115, 11604, 12571, 13338, 14040, 14505, 14820, 17406, 17784, 18373, 19340, 20520, 22230, 23208, 25142, 26109, 26676, 29010, 29640, 33345, 34812, 36746, 37713, 38680, 43515, 44460, 50284, 52218, 53352, 55119, 58020, 62855, 66690, 69624, 73492, 75426, 87030, 88920, 91865, 100568, 104436, 110238, 113139, 116040, 125710, 130545, 133380, 146984, 150852, 165357, 174060, 183730, 188565, 208872, 220476, 226278, 238849, 251420, 261090, 266760, 275595, 301704, 330714, 339417, 348120, 367460, 377130, 440952, 452556, 477698, 496071, 502840, 522180, 551190, 565695, 661428, 678834, 716547, 734920, 754260, 826785, 905112, 955396, 992142, 1044360, 1102380, 1131390, 1194245, 1322856, 1357668, 1433094, 1508520, 1653570, 1697085, 1910792, 1984284, 2149641, 2204760, 2262780, 2388490, 2480355, 2715336, 2866188, 3307140, 3394170, 3582735, 3968568, 4299282, 4525560, 4776980, 4960710, 5732376, 6448923, 6614280, 6788340, 7165470, 8598564, 9553960, 9921420, 10748205, 12897846, 13576680, 14330940, 17197128, 19842840, 21496410, 25795692, 28661880, 32244615, 42992820, 51591384, 64489230, 85985640, 128978460, 257956920]

約数ペア:

[(1, 257956920), (2, 128978460), (3, 85985640), (4, 64489230), (5, 51591384), (6, 42992820), (8, 32244615), (9, 28661880), (10, 25795692), (12, 21496410), (13, 19842840), (15, 17197128), (18, 14330940), (19, 13576680), (20, 12897846), (24, 10748205), (26, 9921420), (27, 9553960), (30, 8598564), (36, 7165470), (38, 6788340), (39, 6614280), (40, 6448923), (45, 5732376), (52, 4960710), (54, 4776980), (57, 4525560), (60, 4299282), (65, 3968568), (72, 3582735), (76, 3394170), (78, 3307140), (90, 2866188), (95, 2715336), (104, 2480355), (108, 2388490), (114, 2262780), (117, 2204760), (120, 2149641), (130, 1984284), (135, 1910792), (152, 1697085), (156, 1653570), (171, 1508520), (180, 1433094), (190, 1357668), (195, 1322856), (216, 1194245), (228, 1131390), (234, 1102380), (247, 1044360), (260, 992142), (270, 955396), (285, 905112), (312, 826785), (342, 754260), (351, 734920), (360, 716547), (380, 678834), (390, 661428), (456, 565695), (468, 551190), (494, 522180), (513, 502840), (520, 496071), (540, 477698), (570, 452556), (585, 440952), (684, 377130), (702, 367460), (741, 348120), (760, 339417), (780, 330714), (855, 301704), (936, 275595), (967, 266760), (988, 261090), (1026, 251420), (1080, 238849), (1140, 226278), (1170, 220476), (1235, 208872), (1368, 188565), (1404, 183730), (1482, 174060), (1560, 165357), (1710, 150852), (1755, 146984), (1934, 133380), (1976, 130545), (2052, 125710), (2223, 116040), (2280, 113139), (2340, 110238), (2470, 104436), (2565, 100568), (2808, 91865), (2901, 88920), (2964, 87030), (3420, 75426), (3510, 73492), (3705, 69624), (3868, 66690), (4104, 62855), (4446, 58020), (4680, 55119), (4835, 53352), (4940, 52218), (5130, 50284), (5802, 44460), (5928, 43515), (6669, 38680), (6840, 37713), (7020, 36746), (7410, 34812), (7736, 33345), (8703, 29640), (8892, 29010), (9670, 26676), (9880, 26109), (10260, 25142), (11115, 23208), (11604, 22230), (12571, 20520), (13338, 19340), (14040, 18373), (14505, 17784), (14820, 17406)]