3937240

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 8916480

約数和(自身を除く): 4979240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 383, 514, 766, 1028, 1285, 1532, 1915, 2056, 2570, 3064, 3830, 5140, 7660, 10280, 15320, 98431, 196862, 393724, 492155, 787448, 984310, 1968620, 3937240]

約数ペア:

[(1, 3937240), (2, 1968620), (4, 984310), (5, 787448), (8, 492155), (10, 393724), (20, 196862), (40, 98431), (257, 15320), (383, 10280), (514, 7660), (766, 5140), (1028, 3830), (1285, 3064), (1532, 2570), (1915, 2056)]