20115360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 70073640

約数和(自身を除く): 49958280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 72, 80, 90, 96, 120, 122, 144, 160, 180, 183, 229, 240, 244, 288, 305, 360, 366, 458, 480, 488, 549, 610, 687, 720, 732, 915, 916, 976, 1098, 1145, 1220, 1374, 1440, 1464, 1830, 1832, 1952, 2061, 2196, 2290, 2440, 2745, 2748, 2928, 3435, 3660, 3664, 4122, 4392, 4580, 4880, 5490, 5496, 5856, 6870, 7320, 7328, 8244, 8784, 9160, 9760, 10305, 10980, 10992, 13740, 13969, 14640, 16488, 17568, 18320, 20610, 21960, 21984, 27480, 27938, 29280, 32976, 36640, 41220, 41907, 43920, 54960, 55876, 65952, 69845, 82440, 83814, 87840, 109920, 111752, 125721, 139690, 164880, 167628, 209535, 223504, 251442, 279380, 329760, 335256, 419070, 447008, 502884, 558760, 628605, 670512, 838140, 1005768, 1117520, 1257210, 1341024, 1676280, 2011536, 2235040, 2514420, 3352560, 4023072, 5028840, 6705120, 10057680, 20115360]

約数ペア:

[(1, 20115360), (2, 10057680), (3, 6705120), (4, 5028840), (5, 4023072), (6, 3352560), (8, 2514420), (9, 2235040), (10, 2011536), (12, 1676280), (15, 1341024), (16, 1257210), (18, 1117520), (20, 1005768), (24, 838140), (30, 670512), (32, 628605), (36, 558760), (40, 502884), (45, 447008), (48, 419070), (60, 335256), (61, 329760), (72, 279380), (80, 251442), (90, 223504), (96, 209535), (120, 167628), (122, 164880), (144, 139690), (160, 125721), (180, 111752), (183, 109920), (229, 87840), (240, 83814), (244, 82440), (288, 69845), (305, 65952), (360, 55876), (366, 54960), (458, 43920), (480, 41907), (488, 41220), (549, 36640), (610, 32976), (687, 29280), (720, 27938), (732, 27480), (915, 21984), (916, 21960), (976, 20610), (1098, 18320), (1145, 17568), (1220, 16488), (1374, 14640), (1440, 13969), (1464, 13740), (1830, 10992), (1832, 10980), (1952, 10305), (2061, 9760), (2196, 9160), (2290, 8784), (2440, 8244), (2745, 7328), (2748, 7320), (2928, 6870), (3435, 5856), (3660, 5496), (3664, 5490), (4122, 4880), (4392, 4580)]