16765240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6871}}^1$

素因数の和:6943

約数の個数: 32

約数和(自身を含む): 38345760

約数和(自身を除く): 21580520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6871, 13742, 27484, 34355, 54968, 68710, 137420, 274840, 419131, 838262, 1676524, 2095655, 3353048, 4191310, 8382620, 16765240]

約数ペア:

[(1, 16765240), (2, 8382620), (4, 4191310), (5, 3353048), (8, 2095655), (10, 1676524), (20, 838262), (40, 419131), (61, 274840), (122, 137420), (244, 68710), (305, 54968), (488, 34355), (610, 27484), (1220, 13742), (2440, 6871)]