311637060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:515

約数の個数: 216

約数和(自身を含む): 1114790040

約数和(自身を除く): 803152980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 89, 90, 98, 105, 126, 140, 147, 178, 180, 196, 210, 245, 252, 267, 294, 315, 356, 397, 420, 441, 445, 490, 534, 588, 623, 630, 735, 794, 801, 882, 890, 980, 1068, 1191, 1246, 1260, 1335, 1470, 1588, 1602, 1764, 1780, 1869, 1985, 2205, 2382, 2492, 2670, 2779, 2940, 3115, 3204, 3573, 3738, 3970, 4005, 4361, 4410, 4764, 5340, 5558, 5607, 5955, 6230, 7146, 7476, 7940, 8010, 8337, 8722, 8820, 9345, 11116, 11214, 11910, 12460, 13083, 13895, 14292, 16020, 16674, 17444, 17865, 18690, 19453, 21805, 22428, 23820, 25011, 26166, 27790, 28035, 33348, 35333, 35730, 37380, 38906, 39249, 41685, 43610, 50022, 52332, 55580, 56070, 58359, 65415, 70666, 71460, 77812, 78498, 83370, 87220, 97265, 100044, 105999, 112140, 116718, 125055, 130830, 141332, 156996, 166740, 175077, 176665, 194530, 196245, 211998, 233436, 247331, 250110, 261660, 291795, 317997, 350154, 353330, 389060, 392490, 423996, 494662, 500220, 529995, 583590, 635994, 700308, 706660, 741993, 784980, 875385, 989324, 1059990, 1167180, 1236655, 1271988, 1483986, 1589985, 1731317, 1750770, 2119980, 2225979, 2473310, 2967972, 3179970, 3462634, 3501540, 3709965, 4451958, 4946620, 5193951, 6359940, 6925268, 7419930, 8656585, 8903916, 10387902, 11129895, 14839860, 15581853, 17313170, 20775804, 22259790, 25969755, 31163706, 34626340, 44519580, 51939510, 62327412, 77909265, 103879020, 155818530, 311637060]

約数ペア:

[(1, 311637060), (2, 155818530), (3, 103879020), (4, 77909265), (5, 62327412), (6, 51939510), (7, 44519580), (9, 34626340), (10, 31163706), (12, 25969755), (14, 22259790), (15, 20775804), (18, 17313170), (20, 15581853), (21, 14839860), (28, 11129895), (30, 10387902), (35, 8903916), (36, 8656585), (42, 7419930), (45, 6925268), (49, 6359940), (60, 5193951), (63, 4946620), (70, 4451958), (84, 3709965), (89, 3501540), (90, 3462634), (98, 3179970), (105, 2967972), (126, 2473310), (140, 2225979), (147, 2119980), (178, 1750770), (180, 1731317), (196, 1589985), (210, 1483986), (245, 1271988), (252, 1236655), (267, 1167180), (294, 1059990), (315, 989324), (356, 875385), (397, 784980), (420, 741993), (441, 706660), (445, 700308), (490, 635994), (534, 583590), (588, 529995), (623, 500220), (630, 494662), (735, 423996), (794, 392490), (801, 389060), (882, 353330), (890, 350154), (980, 317997), (1068, 291795), (1191, 261660), (1246, 250110), (1260, 247331), (1335, 233436), (1470, 211998), (1588, 196245), (1602, 194530), (1764, 176665), (1780, 175077), (1869, 166740), (1985, 156996), (2205, 141332), (2382, 130830), (2492, 125055), (2670, 116718), (2779, 112140), (2940, 105999), (3115, 100044), (3204, 97265), (3573, 87220), (3738, 83370), (3970, 78498), (4005, 77812), (4361, 71460), (4410, 70666), (4764, 65415), (5340, 58359), (5558, 56070), (5607, 55580), (5955, 52332), (6230, 50022), (7146, 43610), (7476, 41685), (7940, 39249), (8010, 38906), (8337, 37380), (8722, 35730), (8820, 35333), (9345, 33348), (11116, 28035), (11214, 27790), (11910, 26166), (12460, 25011), (13083, 23820), (13895, 22428), (14292, 21805), (16020, 19453), (16674, 18690), (17444, 17865)]