1991115840

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1637}}^1$

素因数の和:1845

約数の個数: 224

約数和(自身を含む): 7269260544

約数和(自身を除く): 5278144704

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 181, 192, 210, 224, 240, 280, 320, 336, 362, 420, 448, 480, 543, 560, 672, 724, 840, 905, 960, 1086, 1120, 1267, 1344, 1448, 1637, 1680, 1810, 2172, 2240, 2534, 2715, 2896, 3274, 3360, 3620, 3801, 4344, 4911, 5068, 5430, 5792, 6335, 6548, 6720, 7240, 7602, 8185, 8688, 9822, 10136, 10860, 11459, 11584, 12670, 13096, 14480, 15204, 16370, 17376, 19005, 19644, 20272, 21720, 22918, 24555, 25340, 26192, 28960, 30408, 32740, 34377, 34752, 38010, 39288, 40544, 43440, 45836, 49110, 50680, 52384, 57295, 57920, 60816, 65480, 68754, 76020, 78576, 81088, 86880, 91672, 98220, 101360, 104768, 114590, 121632, 130960, 137508, 152040, 157152, 171885, 173760, 183344, 196440, 202720, 229180, 243264, 261920, 275016, 296297, 304080, 314304, 343770, 366688, 392880, 405440, 458360, 523840, 550032, 592594, 608160, 687540, 733376, 785760, 888891, 916720, 1100064, 1185188, 1216320, 1375080, 1481485, 1571520, 1777782, 1833440, 2074079, 2200128, 2370376, 2750160, 2962970, 3555564, 3666880, 4148158, 4444455, 4740752, 5500320, 5925940, 6222237, 7111128, 8296316, 8888910, 9481504, 10370395, 11000640, 11851880, 12444474, 14222256, 16592632, 17777820, 18963008, 20740790, 23703760, 24888948, 28444512, 31111185, 33185264, 35555640, 41481580, 47407520, 49777896, 56889024, 62222370, 66370528, 71111280, 82963160, 94815040, 99555792, 124444740, 132741056, 142222560, 165926320, 199111584, 248889480, 284445120, 331852640, 398223168, 497778960, 663705280, 995557920, 1991115840]

約数ペア:

[(1, 1991115840), (2, 995557920), (3, 663705280), (4, 497778960), (5, 398223168), (6, 331852640), (7, 284445120), (8, 248889480), (10, 199111584), (12, 165926320), (14, 142222560), (15, 132741056), (16, 124444740), (20, 99555792), (21, 94815040), (24, 82963160), (28, 71111280), (30, 66370528), (32, 62222370), (35, 56889024), (40, 49777896), (42, 47407520), (48, 41481580), (56, 35555640), (60, 33185264), (64, 31111185), (70, 28444512), (80, 24888948), (84, 23703760), (96, 20740790), (105, 18963008), (112, 17777820), (120, 16592632), (140, 14222256), (160, 12444474), (168, 11851880), (181, 11000640), (192, 10370395), (210, 9481504), (224, 8888910), (240, 8296316), (280, 7111128), (320, 6222237), (336, 5925940), (362, 5500320), (420, 4740752), (448, 4444455), (480, 4148158), (543, 3666880), (560, 3555564), (672, 2962970), (724, 2750160), (840, 2370376), (905, 2200128), (960, 2074079), (1086, 1833440), (1120, 1777782), (1267, 1571520), (1344, 1481485), (1448, 1375080), (1637, 1216320), (1680, 1185188), (1810, 1100064), (2172, 916720), (2240, 888891), (2534, 785760), (2715, 733376), (2896, 687540), (3274, 608160), (3360, 592594), (3620, 550032), (3801, 523840), (4344, 458360), (4911, 405440), (5068, 392880), (5430, 366688), (5792, 343770), (6335, 314304), (6548, 304080), (6720, 296297), (7240, 275016), (7602, 261920), (8185, 243264), (8688, 229180), (9822, 202720), (10136, 196440), (10860, 183344), (11459, 173760), (11584, 171885), (12670, 157152), (13096, 152040), (14480, 137508), (15204, 130960), (16370, 121632), (17376, 114590), (19005, 104768), (19644, 101360), (20272, 98220), (21720, 91672), (22918, 86880), (24555, 81088), (25340, 78576), (26192, 76020), (28960, 68754), (30408, 65480), (32740, 60816), (34377, 57920), (34752, 57295), (38010, 52384), (39288, 50680), (40544, 49110), (43440, 45836)]