249163740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6379}}^1$

素因数の和:6432

約数の個数: 144

約数和(自身を含む): 891770880

約数和(自身を除く): 642607140

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, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 651, 868, 930, 1085, 1116, 1260, 1302, 1395, 1860, 1953, 2170, 2604, 2790, 3255, 3906, 4340, 5580, 6379, 6510, 7812, 9765, 12758, 13020, 19137, 19530, 25516, 31895, 38274, 39060, 44653, 57411, 63790, 76548, 89306, 95685, 114822, 127580, 133959, 178612, 191370, 197749, 223265, 229644, 267918, 287055, 382740, 395498, 401877, 446530, 535836, 574110, 593247, 669795, 790996, 803754, 893060, 988745, 1148220, 1186494, 1339590, 1384243, 1607508, 1779741, 1977490, 2009385, 2372988, 2679180, 2768486, 2966235, 3559482, 3954980, 4018770, 4152729, 5536972, 5932470, 6921215, 7118964, 8037540, 8305458, 8898705, 11864940, 12458187, 13842430, 16610916, 17797410, 20763645, 24916374, 27684860, 35594820, 41527290, 49832748, 62290935, 83054580, 124581870, 249163740]

約数ペア:

[(1, 249163740), (2, 124581870), (3, 83054580), (4, 62290935), (5, 49832748), (6, 41527290), (7, 35594820), (9, 27684860), (10, 24916374), (12, 20763645), (14, 17797410), (15, 16610916), (18, 13842430), (20, 12458187), (21, 11864940), (28, 8898705), (30, 8305458), (31, 8037540), (35, 7118964), (36, 6921215), (42, 5932470), (45, 5536972), (60, 4152729), (62, 4018770), (63, 3954980), (70, 3559482), (84, 2966235), (90, 2768486), (93, 2679180), (105, 2372988), (124, 2009385), (126, 1977490), (140, 1779741), (155, 1607508), (180, 1384243), (186, 1339590), (210, 1186494), (217, 1148220), (252, 988745), (279, 893060), (310, 803754), (315, 790996), (372, 669795), (420, 593247), (434, 574110), (465, 535836), (558, 446530), (620, 401877), (630, 395498), (651, 382740), (868, 287055), (930, 267918), (1085, 229644), (1116, 223265), (1260, 197749), (1302, 191370), (1395, 178612), (1860, 133959), (1953, 127580), (2170, 114822), (2604, 95685), (2790, 89306), (3255, 76548), (3906, 63790), (4340, 57411), (5580, 44653), (6379, 39060), (6510, 38274), (7812, 31895), (9765, 25516), (12758, 19530), (13020, 19137)]