156928470280

素因数分解:

$2^3\times 5^1\times {\mathrm{9931}}^1\times {\mathrm{395047}}^1$

素因数の和:404989

約数の個数: 32

約数和(自身を含む): 353125506240

約数和(自身を除く): 196197035960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9931, 19862, 39724, 49655, 79448, 99310, 198620, 395047, 397240, 790094, 1580188, 1975235, 3160376, 3950470, 7900940, 15801880, 3923211757, 7846423514, 15692847028, 19616058785, 31385694056, 39232117570, 78464235140, 156928470280]

約数ペア:

[(1, 156928470280), (2, 78464235140), (4, 39232117570), (5, 31385694056), (8, 19616058785), (10, 15692847028), (20, 7846423514), (40, 3923211757), (9931, 15801880), (19862, 7900940), (39724, 3950470), (49655, 3160376), (79448, 1975235), (99310, 1580188), (198620, 790094), (395047, 397240)]