66987900

素因数分解:

$2^2\times 3^2\times 5^2\times 7^4\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 270

約数和(自身を含む): 252851872

約数和(自身を除く): 185863972

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 31, 35, 36, 42, 45, 49, 50, 60, 62, 63, 70, 75, 84, 90, 93, 98, 100, 105, 124, 126, 140, 147, 150, 155, 175, 180, 186, 196, 210, 217, 225, 245, 252, 279, 294, 300, 310, 315, 343, 350, 372, 420, 434, 441, 450, 465, 490, 525, 558, 588, 620, 630, 651, 686, 700, 735, 775, 868, 882, 900, 930, 980, 1029, 1050, 1085, 1116, 1225, 1260, 1302, 1372, 1395, 1470, 1519, 1550, 1575, 1715, 1764, 1860, 1953, 2058, 2100, 2170, 2205, 2325, 2401, 2450, 2604, 2790, 2940, 3038, 3087, 3100, 3150, 3255, 3430, 3675, 3906, 4116, 4340, 4410, 4557, 4650, 4802, 4900, 5145, 5425, 5580, 6076, 6174, 6300, 6510, 6860, 6975, 7203, 7350, 7595, 7812, 8575, 8820, 9114, 9300, 9604, 9765, 10290, 10633, 10850, 11025, 12005, 12348, 13020, 13671, 13950, 14406, 14700, 15190, 15435, 16275, 17150, 18228, 19530, 20580, 21266, 21609, 21700, 22050, 22785, 24010, 25725, 27342, 27900, 28812, 30380, 30870, 31899, 32550, 34300, 36015, 37975, 39060, 42532, 43218, 44100, 45570, 48020, 48825, 51450, 53165, 54684, 60025, 61740, 63798, 65100, 68355, 72030, 74431, 75950, 77175, 86436, 91140, 95697, 97650, 102900, 106330, 108045, 113925, 120050, 127596, 136710, 144060, 148862, 151900, 154350, 159495, 180075, 191394, 195300, 212660, 216090, 223293, 227850, 240100, 265825, 273420, 297724, 308700, 318990, 341775, 360150, 372155, 382788, 432180, 446586, 455700, 478485, 531650, 540225, 637980, 669879, 683550, 720300, 744310, 797475, 893172, 956970, 1063300, 1080450, 1116465, 1339758, 1367100, 1488620, 1594950, 1860775, 1913940, 2160900, 2232930, 2392425, 2679516, 3189900, 3349395, 3721550, 4465860, 4784850, 5582325, 6698790, 7443100, 9569700, 11164650, 13397580, 16746975, 22329300, 33493950, 66987900]

約数ペア:

[(1, 66987900), (2, 33493950), (3, 22329300), (4, 16746975), (5, 13397580), (6, 11164650), (7, 9569700), (9, 7443100), (10, 6698790), (12, 5582325), (14, 4784850), (15, 4465860), (18, 3721550), (20, 3349395), (21, 3189900), (25, 2679516), (28, 2392425), (30, 2232930), (31, 2160900), (35, 1913940), (36, 1860775), (42, 1594950), (45, 1488620), (49, 1367100), (50, 1339758), (60, 1116465), (62, 1080450), (63, 1063300), (70, 956970), (75, 893172), (84, 797475), (90, 744310), (93, 720300), (98, 683550), (100, 669879), (105, 637980), (124, 540225), (126, 531650), (140, 478485), (147, 455700), (150, 446586), (155, 432180), (175, 382788), (180, 372155), (186, 360150), (196, 341775), (210, 318990), (217, 308700), (225, 297724), (245, 273420), (252, 265825), (279, 240100), (294, 227850), (300, 223293), (310, 216090), (315, 212660), (343, 195300), (350, 191394), (372, 180075), (420, 159495), (434, 154350), (441, 151900), (450, 148862), (465, 144060), (490, 136710), (525, 127596), (558, 120050), (588, 113925), (620, 108045), (630, 106330), (651, 102900), (686, 97650), (700, 95697), (735, 91140), (775, 86436), (868, 77175), (882, 75950), (900, 74431), (930, 72030), (980, 68355), (1029, 65100), (1050, 63798), (1085, 61740), (1116, 60025), (1225, 54684), (1260, 53165), (1302, 51450), (1372, 48825), (1395, 48020), (1470, 45570), (1519, 44100), (1550, 43218), (1575, 42532), (1715, 39060), (1764, 37975), (1860, 36015), (1953, 34300), (2058, 32550), (2100, 31899), (2170, 30870), (2205, 30380), (2325, 28812), (2401, 27900), (2450, 27342), (2604, 25725), (2790, 24010), (2940, 22785), (3038, 22050), (3087, 21700), (3100, 21609), (3150, 21266), (3255, 20580), (3430, 19530), (3675, 18228), (3906, 17150), (4116, 16275), (4340, 15435), (4410, 15190), (4557, 14700), (4650, 14406), (4802, 13950), (4900, 13671), (5145, 13020), (5425, 12348), (5580, 12005), (6076, 11025), (6174, 10850), (6300, 10633), (6510, 10290), (6860, 9765), (6975, 9604), (7203, 9300), (7350, 9114), (7595, 8820), (7812, 8575)]