28709100

素因数分解:

$2^2\times 3^3\times 5^2\times 7^3\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 288

約数和(自身を含む): 111104000

約数和(自身を除く): 82394900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 31, 35, 36, 42, 45, 49, 50, 54, 60, 62, 63, 70, 75, 84, 90, 93, 98, 100, 105, 108, 124, 126, 135, 140, 147, 150, 155, 175, 180, 186, 189, 196, 210, 217, 225, 245, 252, 270, 279, 294, 300, 310, 315, 343, 350, 372, 378, 420, 434, 441, 450, 465, 490, 525, 540, 558, 588, 620, 630, 651, 675, 686, 700, 735, 756, 775, 837, 868, 882, 900, 930, 945, 980, 1029, 1050, 1085, 1116, 1225, 1260, 1302, 1323, 1350, 1372, 1395, 1470, 1519, 1550, 1575, 1674, 1715, 1764, 1860, 1890, 1953, 2058, 2100, 2170, 2205, 2325, 2450, 2604, 2646, 2700, 2790, 2940, 3038, 3087, 3100, 3150, 3255, 3348, 3430, 3675, 3780, 3906, 4116, 4185, 4340, 4410, 4557, 4650, 4725, 4900, 5145, 5292, 5425, 5580, 5859, 6076, 6174, 6300, 6510, 6615, 6860, 6975, 7350, 7595, 7812, 8370, 8575, 8820, 9114, 9261, 9300, 9450, 9765, 10290, 10633, 10850, 11025, 11718, 12348, 13020, 13230, 13671, 13950, 14700, 15190, 15435, 16275, 16740, 17150, 18228, 18522, 18900, 19530, 20580, 20925, 21266, 21700, 22050, 22785, 23436, 25725, 26460, 27342, 27900, 29295, 30380, 30870, 31899, 32550, 33075, 34300, 37044, 37975, 39060, 41013, 41850, 42532, 44100, 45570, 46305, 48825, 51450, 53165, 54684, 58590, 61740, 63798, 65100, 66150, 68355, 75950, 77175, 82026, 83700, 91140, 92610, 95697, 97650, 102900, 106330, 113925, 117180, 127596, 132300, 136710, 146475, 151900, 154350, 159495, 164052, 185220, 191394, 195300, 205065, 212660, 227850, 231525, 265825, 273420, 287091, 292950, 308700, 318990, 341775, 382788, 410130, 455700, 463050, 478485, 531650, 574182, 585900, 637980, 683550, 797475, 820260, 926100, 956970, 1025325, 1063300, 1148364, 1367100, 1435455, 1594950, 1913940, 2050650, 2392425, 2870910, 3189900, 4101300, 4784850, 5741820, 7177275, 9569700, 14354550, 28709100]

約数ペア:

[(1, 28709100), (2, 14354550), (3, 9569700), (4, 7177275), (5, 5741820), (6, 4784850), (7, 4101300), (9, 3189900), (10, 2870910), (12, 2392425), (14, 2050650), (15, 1913940), (18, 1594950), (20, 1435455), (21, 1367100), (25, 1148364), (27, 1063300), (28, 1025325), (30, 956970), (31, 926100), (35, 820260), (36, 797475), (42, 683550), (45, 637980), (49, 585900), (50, 574182), (54, 531650), (60, 478485), (62, 463050), (63, 455700), (70, 410130), (75, 382788), (84, 341775), (90, 318990), (93, 308700), (98, 292950), (100, 287091), (105, 273420), (108, 265825), (124, 231525), (126, 227850), (135, 212660), (140, 205065), (147, 195300), (150, 191394), (155, 185220), (175, 164052), (180, 159495), (186, 154350), (189, 151900), (196, 146475), (210, 136710), (217, 132300), (225, 127596), (245, 117180), (252, 113925), (270, 106330), (279, 102900), (294, 97650), (300, 95697), (310, 92610), (315, 91140), (343, 83700), (350, 82026), (372, 77175), (378, 75950), (420, 68355), (434, 66150), (441, 65100), (450, 63798), (465, 61740), (490, 58590), (525, 54684), (540, 53165), (558, 51450), (588, 48825), (620, 46305), (630, 45570), (651, 44100), (675, 42532), (686, 41850), (700, 41013), (735, 39060), (756, 37975), (775, 37044), (837, 34300), (868, 33075), (882, 32550), (900, 31899), (930, 30870), (945, 30380), (980, 29295), (1029, 27900), (1050, 27342), (1085, 26460), (1116, 25725), (1225, 23436), (1260, 22785), (1302, 22050), (1323, 21700), (1350, 21266), (1372, 20925), (1395, 20580), (1470, 19530), (1519, 18900), (1550, 18522), (1575, 18228), (1674, 17150), (1715, 16740), (1764, 16275), (1860, 15435), (1890, 15190), (1953, 14700), (2058, 13950), (2100, 13671), (2170, 13230), (2205, 13020), (2325, 12348), (2450, 11718), (2604, 11025), (2646, 10850), (2700, 10633), (2790, 10290), (2940, 9765), (3038, 9450), (3087, 9300), (3100, 9261), (3150, 9114), (3255, 8820), (3348, 8575), (3430, 8370), (3675, 7812), (3780, 7595), (3906, 7350), (4116, 6975), (4185, 6860), (4340, 6615), (4410, 6510), (4557, 6300), (4650, 6174), (4725, 6076), (4900, 5859), (5145, 5580), (5292, 5425)]