81906872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4243}}^1$

素因数の和:4395

約数の個数: 32

約数和(自身を含む): 162969600

約数和(自身を除く): 81062728

約数列:

[1, 2, 4, 8, 19, 38, 76, 127, 152, 254, 508, 1016, 2413, 4243, 4826, 8486, 9652, 16972, 19304, 33944, 80617, 161234, 322468, 538861, 644936, 1077722, 2155444, 4310888, 10238359, 20476718, 40953436, 81906872]

約数ペア:

[(1, 81906872), (2, 40953436), (4, 20476718), (8, 10238359), (19, 4310888), (38, 2155444), (76, 1077722), (127, 644936), (152, 538861), (254, 322468), (508, 161234), (1016, 80617), (2413, 33944), (4243, 19304), (4826, 16972), (8486, 9652)]