31752440

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3989}}^1$

素因数の和:4199

約数の個数: 32

約数和(自身を含む): 71820000

約数和(自身を除く): 40067560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 3989, 7960, 7978, 15956, 19945, 31912, 39890, 79780, 159560, 793811, 1587622, 3175244, 3969055, 6350488, 7938110, 15876220, 31752440]

約数ペア:

[(1, 31752440), (2, 15876220), (4, 7938110), (5, 6350488), (8, 3969055), (10, 3175244), (20, 1587622), (40, 793811), (199, 159560), (398, 79780), (796, 39890), (995, 31912), (1592, 19945), (1990, 15956), (3980, 7978), (3989, 7960)]