12551360

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 30425136

約数和(自身を除く): 17873776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 643, 976, 1220, 1286, 1952, 2440, 2572, 3215, 3904, 4880, 5144, 6430, 9760, 10288, 12860, 19520, 20576, 25720, 39223, 41152, 51440, 78446, 102880, 156892, 196115, 205760, 313784, 392230, 627568, 784460, 1255136, 1568920, 2510272, 3137840, 6275680, 12551360]

約数ペア:

[(1, 12551360), (2, 6275680), (4, 3137840), (5, 2510272), (8, 1568920), (10, 1255136), (16, 784460), (20, 627568), (32, 392230), (40, 313784), (61, 205760), (64, 196115), (80, 156892), (122, 102880), (160, 78446), (244, 51440), (305, 41152), (320, 39223), (488, 25720), (610, 20576), (643, 19520), (976, 12860), (1220, 10288), (1286, 9760), (1952, 6430), (2440, 5144), (2572, 4880), (3215, 3904)]