279161820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1081

約数の個数: 216

約数和(自身を含む): 1017813888

約数和(自身を除く): 738652068

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 49, 60, 62, 63, 70, 84, 90, 93, 98, 105, 124, 126, 140, 147, 155, 180, 186, 196, 210, 217, 245, 252, 279, 294, 310, 315, 372, 420, 434, 441, 465, 490, 558, 588, 620, 630, 651, 735, 868, 882, 930, 980, 1021, 1085, 1116, 1260, 1302, 1395, 1470, 1519, 1764, 1860, 1953, 2042, 2170, 2205, 2604, 2790, 2940, 3038, 3063, 3255, 3906, 4084, 4340, 4410, 4557, 5105, 5580, 6076, 6126, 6510, 7147, 7595, 7812, 8820, 9114, 9189, 9765, 10210, 12252, 13020, 13671, 14294, 15190, 15315, 18228, 18378, 19530, 20420, 21441, 22785, 27342, 28588, 30380, 30630, 31651, 35735, 36756, 39060, 42882, 45570, 45945, 50029, 54684, 61260, 63302, 64323, 68355, 71470, 85764, 91140, 91890, 94953, 100058, 107205, 126604, 128646, 136710, 142940, 150087, 158255, 183780, 189906, 200116, 214410, 221557, 250145, 257292, 273420, 284859, 300174, 316510, 321615, 379812, 428820, 443114, 450261, 474765, 500290, 569718, 600348, 633020, 643230, 664671, 750435, 886228, 900522, 949530, 1000580, 1107785, 1139436, 1286460, 1329342, 1424295, 1500870, 1550899, 1801044, 1899060, 1994013, 2215570, 2251305, 2658684, 2848590, 3001740, 3101798, 3323355, 3988026, 4431140, 4502610, 4652697, 5697180, 6203596, 6646710, 7754495, 7976052, 9005220, 9305394, 9970065, 13293420, 13958091, 15508990, 18610788, 19940130, 23263485, 27916182, 31017980, 39880260, 46526970, 55832364, 69790455, 93053940, 139580910, 279161820]

約数ペア:

[(1, 279161820), (2, 139580910), (3, 93053940), (4, 69790455), (5, 55832364), (6, 46526970), (7, 39880260), (9, 31017980), (10, 27916182), (12, 23263485), (14, 19940130), (15, 18610788), (18, 15508990), (20, 13958091), (21, 13293420), (28, 9970065), (30, 9305394), (31, 9005220), (35, 7976052), (36, 7754495), (42, 6646710), (45, 6203596), (49, 5697180), (60, 4652697), (62, 4502610), (63, 4431140), (70, 3988026), (84, 3323355), (90, 3101798), (93, 3001740), (98, 2848590), (105, 2658684), (124, 2251305), (126, 2215570), (140, 1994013), (147, 1899060), (155, 1801044), (180, 1550899), (186, 1500870), (196, 1424295), (210, 1329342), (217, 1286460), (245, 1139436), (252, 1107785), (279, 1000580), (294, 949530), (310, 900522), (315, 886228), (372, 750435), (420, 664671), (434, 643230), (441, 633020), (465, 600348), (490, 569718), (558, 500290), (588, 474765), (620, 450261), (630, 443114), (651, 428820), (735, 379812), (868, 321615), (882, 316510), (930, 300174), (980, 284859), (1021, 273420), (1085, 257292), (1116, 250145), (1260, 221557), (1302, 214410), (1395, 200116), (1470, 189906), (1519, 183780), (1764, 158255), (1860, 150087), (1953, 142940), (2042, 136710), (2170, 128646), (2205, 126604), (2604, 107205), (2790, 100058), (2940, 94953), (3038, 91890), (3063, 91140), (3255, 85764), (3906, 71470), (4084, 68355), (4340, 64323), (4410, 63302), (4557, 61260), (5105, 54684), (5580, 50029), (6076, 45945), (6126, 45570), (6510, 42882), (7147, 39060), (7595, 36756), (7812, 35735), (8820, 31651), (9114, 30630), (9189, 30380), (9765, 28588), (10210, 27342), (12252, 22785), (13020, 21441), (13671, 20420), (14294, 19530), (15190, 18378), (15315, 18228)]