21838320

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{619}}^1$

素因数の和:652

約数の個数: 180

約数和(自身を含む): 85452120

約数和(自身を除く): 63613800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 619, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1238, 1260, 1470, 1680, 1764, 1857, 1960, 2205, 2352, 2476, 2520, 2940, 3095, 3528, 3714, 3920, 4333, 4410, 4952, 5040, 5571, 5880, 6190, 7056, 7428, 8666, 8820, 9285, 9904, 11142, 11760, 12380, 12999, 14856, 17332, 17640, 18570, 21665, 22284, 24760, 25998, 27855, 29712, 30331, 34664, 35280, 37140, 38997, 43330, 44568, 49520, 51996, 55710, 60662, 64995, 69328, 74280, 77994, 86660, 89136, 90993, 103992, 111420, 121324, 129990, 148560, 151655, 155988, 173320, 181986, 194985, 207984, 222840, 242648, 259980, 272979, 303310, 311976, 346640, 363972, 389970, 445680, 454965, 485296, 519960, 545958, 606620, 623952, 727944, 779940, 909930, 1039920, 1091916, 1213240, 1364895, 1455888, 1559880, 1819860, 2183832, 2426480, 2729790, 3119760, 3639720, 4367664, 5459580, 7279440, 10919160, 21838320]

約数ペア:

[(1, 21838320), (2, 10919160), (3, 7279440), (4, 5459580), (5, 4367664), (6, 3639720), (7, 3119760), (8, 2729790), (9, 2426480), (10, 2183832), (12, 1819860), (14, 1559880), (15, 1455888), (16, 1364895), (18, 1213240), (20, 1091916), (21, 1039920), (24, 909930), (28, 779940), (30, 727944), (35, 623952), (36, 606620), (40, 545958), (42, 519960), (45, 485296), (48, 454965), (49, 445680), (56, 389970), (60, 363972), (63, 346640), (70, 311976), (72, 303310), (80, 272979), (84, 259980), (90, 242648), (98, 222840), (105, 207984), (112, 194985), (120, 181986), (126, 173320), (140, 155988), (144, 151655), (147, 148560), (168, 129990), (180, 121324), (196, 111420), (210, 103992), (240, 90993), (245, 89136), (252, 86660), (280, 77994), (294, 74280), (315, 69328), (336, 64995), (360, 60662), (392, 55710), (420, 51996), (441, 49520), (490, 44568), (504, 43330), (560, 38997), (588, 37140), (619, 35280), (630, 34664), (720, 30331), (735, 29712), (784, 27855), (840, 25998), (882, 24760), (980, 22284), (1008, 21665), (1176, 18570), (1238, 17640), (1260, 17332), (1470, 14856), (1680, 12999), (1764, 12380), (1857, 11760), (1960, 11142), (2205, 9904), (2352, 9285), (2476, 8820), (2520, 8666), (2940, 7428), (3095, 7056), (3528, 6190), (3714, 5880), (3920, 5571), (4333, 5040), (4410, 4952)]