8510720

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 20910120

約数和(自身を除く): 12399400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 109, 122, 128, 160, 218, 244, 256, 305, 320, 436, 488, 545, 610, 640, 872, 976, 1090, 1220, 1280, 1744, 1952, 2180, 2440, 3488, 3904, 4360, 4880, 6649, 6976, 7808, 8720, 9760, 13298, 13952, 15616, 17440, 19520, 26596, 27904, 33245, 34880, 39040, 53192, 66490, 69760, 78080, 106384, 132980, 139520, 212768, 265960, 425536, 531920, 851072, 1063840, 1702144, 2127680, 4255360, 8510720]

約数ペア:

[(1, 8510720), (2, 4255360), (4, 2127680), (5, 1702144), (8, 1063840), (10, 851072), (16, 531920), (20, 425536), (32, 265960), (40, 212768), (61, 139520), (64, 132980), (80, 106384), (109, 78080), (122, 69760), (128, 66490), (160, 53192), (218, 39040), (244, 34880), (256, 33245), (305, 27904), (320, 26596), (436, 19520), (488, 17440), (545, 15616), (610, 13952), (640, 13298), (872, 9760), (976, 8720), (1090, 7808), (1220, 6976), (1280, 6649), (1744, 4880), (1952, 4360), (2180, 3904), (2440, 3488)]