31896280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61339}}^1$

素因数の和:61363

約数の個数: 32

約数和(自身を含む): 77288400

約数和(自身を除く): 45392120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61339, 122678, 245356, 306695, 490712, 613390, 797407, 1226780, 1594814, 2453560, 3189628, 3987035, 6379256, 7974070, 15948140, 31896280]

約数ペア:

[(1, 31896280), (2, 15948140), (4, 7974070), (5, 6379256), (8, 3987035), (10, 3189628), (13, 2453560), (20, 1594814), (26, 1226780), (40, 797407), (52, 613390), (65, 490712), (104, 306695), (130, 245356), (260, 122678), (520, 61339)]