77881480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15331}}^1$

素因数の和:15469

約数の個数: 32

約数和(自身を含む): 176624640

約数和(自身を除く): 98743160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 15331, 30662, 61324, 76655, 122648, 153310, 306620, 613240, 1947037, 3894074, 7788148, 9735185, 15576296, 19470370, 38940740, 77881480]

約数ペア:

[(1, 77881480), (2, 38940740), (4, 19470370), (5, 15576296), (8, 9735185), (10, 7788148), (20, 3894074), (40, 1947037), (127, 613240), (254, 306620), (508, 153310), (635, 122648), (1016, 76655), (1270, 61324), (2540, 30662), (5080, 15331)]